That Very Significant Last Three Meters of Jack Length at Lawn Bowls

 

Just because your lawn bowling opponent(s) can successfully bowl to a jack twenty-seven meters from the mat doesn’t mean at 30 meters the same success will persist. It is that last little stretch in length that so often makes the difference.

 

Even if you are worried that you might deliver the jack into the forward ditch, it shouldn’t deter you from trying to deliver a really long jack, if you have reason to believe that that would benefit your side. Even if you do lose the jack occasionally in the front ditch and give away the mat and jack length to the other side, isn’t it better to have an authentic long jack some of the time if that is what you think would provide an advantage?

The other day I was leading for my side in a triples match where the opposing skip bowled with one knee on the mat. This meant that he was bowling with arm strength alone…..there was no possible contribution from body momentum because he could not step forward. He was able to bowl fairly well to 27 meter jacks but when the length went to 30 meters he was either erratic or three meters short. This provided the tactical advantage to win the match, even though I delivered the jack into the front ditch twice and lost the mat advantage those times. When I did succeed in placing the longer jack we were able to score several multi-point ends.

“After Four a Meter More” at Lawn Bowls

The Greenbowler blog has recently researched the effects of rain and wind on the delivery and rolling characteristics of a lawn bowl. There is another environmental factor which has some importance but it does not depend upon the weather from day to day— it changes from hour to hour.

I was reminded of the significance of this factor while watching a video from the 2023 Australian Bowls calendar. The commentators noted during the match that the competitors were increasingly leaving their bowls a bit short. They quoted an Australian saying, “After four a meter more.”

I had never heard this but it encapsulates in a memorable way an important bit of lawn bowling lore. When the bowling surface cools down its resistance increases modestly but quickly and the weight that was perfect earlier in the day, when for example it was sunny, becomes insufficient.  Even in overcast conditions, the high temperature for the day often comes between 3 and 4 o’clock. After that time you need to instruct your subconscious control mechanism that a little extra push is required!

The Ten Top Greenbowler Lawn Bowling Blogs

Ryan Bester at Broadbeach

 

I've been posting The Greenbowler Blog for seven years. Although, as the editor, I can see which of my 228 posts have been more popular this information is not readily available to readers although posts can be selected by keywords using the search tool in the right-hand column of each blog article. So below, I list, each with its own link, my 10 most popular blog articles of all time. If this proves useful and there is a demand for it, I will supply links for numbers 11-20 later.

1. The Secret to Controlled Weight

2. Strategy and Tactics at Bowls

3. Lawn Bowling from the Shooters Stance

4. Measuring at Bowls

5. Jack or Bowl: Reading the Head

6. Strategy of Leads at Pairs

7. Controlled Weight

8. Choosing your Correct Bias for Bowls

9. Delivering Bowls with a Cocked Wrist

10. Henselite Supergrip Championship Bowls

David Bryant's Secret connecting Length and Line

David Bryant has made a Youtube video teaching lawn bowling. In a snippet between 33:50 and 34:45 minutes into the presentation, he says that from his set position on the mat before delivery, his eyes switch back and forth between focussing on the stare point on his aim line and looking at the location of the jack target. He continues switching his focus back and forth between them until he feels comfortable and then, concentrating on his stare point, he delivers his bowl.

 I have never heard this advice before but based on my own subsequent imitation on the rink, I can confirm it does improve results! 

The reason it works I can only speculate. Perhaps it better links considerations of line and length into one operation. It doe not burden you to remember the required length while choosing line but rather refreshes that memory just an instant before commencing the delivery action.

Try it. I feel this is a significant insight that advances my bowling.

Updating Controlling Weight at Lawn Bowls

About five years ago, at the Turramurra LBC near Sydney Australia, when I sought help to control the weight of my deliveries, Bob Hawtree, one of the coaches, told me to study closely the distance of the jack from the mat and in my head simply ask the question, “What does it feel like to bowl to a jack at this distance? I was told this will elicit a response from my muscle memory. Then, “I should simply bowl with that memory in my mind.”

Essentially this means don’t first try estimating the number of meters from mat to jack and then putting a number on it. Rather, let your internal computer take the data from your eyes and let it control your muscles directly.

I was not spending enough time just looking carefully at the distance of the jack from the mat and letting that feed to my ‘mental computer’.

This advice must, of course, be combined with a  reproducible delivery motion. Bob emphasized three things for me in this area: the position where the bowl is released (about 6 inches in front of the advancing foot; the point in one’s swing where the step out begins (the bottom of my backswing); and the height to which one raises one’s arm in the follow-through (not more than the height of the knee). 

Surprisingly to me, this worked amazingly well for a while! I dramatically upped my game. This was in fact the most significant improvement I had made in years!

 However, because I had not been playing long enough up to that time, my delivery had not been grooved and so the resulting inconsistency muddled the truth in what I had been told. Now years later, I only need add one thing to that wisdom: get your bowl away smoothly without dumping or wobble and the results will prove the intelligence of your subconscious knowledge of the correct weight.

 This extra nugget was reinforced by the words of a former Canadian champion playing with me at Valverde LBC here in Portugal just a couple of weeks ago.

The Delivery at Lawn Bowls: Controlling Weight

My Bowls are Yellow

Controlling weight is the most popular topic of inquiry on this blog; therefore I add the following.

There is a lot of confusing advice about how to control the distance a bowl travels after you release it from the mat. I discern that one big reason for this is that the answer needs to be different depending on how long the questioner has been bowling.

What I have found is that until you have bowled for about six seasons your subconscious does not have enough experience to know how to deliver the correct ‘weight’ on its own.  That is, it is not intuitive. You need to think about each delivery and adjust elements of your physical delivery consciously. You have to think about changing something: your bowl elevation, length of step, degree of crouching, whatever. When you read advice to make these specific adjustments, you need to understand that this advice is for newer bowlers who are just learning the game or bowlers who have made significant changes in their physical delivery.

Once you have been bowling for some time, (for me it was six years bowling year-round), these instructions do not apply. In fact, they are harmful. 

Your delivery should have become grooved by then. There is now another group of advice articles that apply. They will tell you something like the following:

 

You need to flood your subconscious mind with confident messages. Your body should relax. Let your conscious mind deliver reliable data to your subconscious (the wind, the green speed, the position you want the bowl to stop). Consciously set yourself properly on the mat; visualize the path for the bowl; then as you begin your delivery turn control over to your subconscious. Your conscious mind should go blank. You are ‘in the groove’. Your body spontaneously just does the required thing!

Until the delivery has become as natural as walking or driving a car, these latter instructions are madness. For newer bowlers, they just confuse and lengthen the learning process. For bowlers who have grooved their deliveries thinking about the physical mechanics, trying to control weight with the conscious mind blocks progress.

The Delivery at Lawn Bowls: Weight Consistency and Line Consistency All in One Magical Step

I have achieved a quantum leap in my lawn bowling performance that has not been matched by anything since I adopted the Shooters’ Stance several years ago.

Here it is. Clear and simple. Look at my diagram (I am left handed-so you will have to adjust for right-handed delivery).

From the Shooters’ Stance, I select a stare point about 5 meters in front of the mat line on my aim line. Nev Rodda in his second video explains that the Shooters’ Stance teaches that you should ‘aim’ with your forward stepping foot.  What I have found is that you don’t just generally point that foot along your aim line, you carefully point it precisely at your stare point and when you step you step out placing that advancing foot right on the line running to that stare point. Then, two good things happen. First, your bowl passes more consistently over that stare point, and second, more amazingly, because your advancing foot is completely aligned with the stare point your body smoothly rocks forward. Your weight transfers smoothly first to your heel, then the ball, and then the toes of that foot as you walk off the mat. The result is remarkably improved weight control!

Previously, I was stepping forward but my foot was sometimes not properly pointed. The result was that I couldn’t smoothly roll my body weight forward into the delivery so I got a varying contribution of body momentum for each shot. This meant I couldn’t control the initial velocity of my bowl.

There is more good news! Because line and length are so much improved my confidence is over the top and this allows me to think authentically positively about the outcome of every shot and when you believe you can do it, you just do it!

Delivery at Lawn Bowls: Subtracting Weight

Steve McKerihan is a perennial player on Canada’s Commonwealth Games Lawn Bowling teams and a frequent coach for lawn bowling skills development. He is also the father of Kelly McKerihan one of the premier lawn bowlers in the world.

Last week we were in a group chatting after a mens’ interclub match and he mentioned that a dependable way to take off weight, when your previous bowl is a meter or so long is to deliver this next bowl with the same arm speed and body weight transfer but to not stay down when you deliver your bowl but to start to rise as you release it. The reason why this should work is that by lifting your body as you release the bowl, you transfer some of the horizontal energy which is what moves the bowl down the rink, into a vertical component of energy that is wasted. As a consequence the bowl doesn’t travel quite as far.

The physics of this was immediately incontrovertible to me. Furthermore, this is why you are told to stay down throughout your delivery if you don’t want to be short. I said to Steve, “On Youtube I have seen top bowlers not staying down and I thought they were making a mistake.”

“No, no” was his reply, “they are just subtracting weight.”

Well, I’ve been bowling seven years now and I’ve attended weight control clinics and I’ve never heard this. What’s more important I’ve been trying it and it works!

After 6 Years Bowling: The Status of Weight Control

For more than five years, since I took up lawn bowls, I have been consciously trying to control the weight of my deliveries, based on the reported jack length. Such was my lack of confidence concerning my visual estimation of the length of the jack that I would ask my skip each end to call out to me how far past the hog line the jack was sitting. When I was skipping, I could be quiet. I had the advantage that I could pace off this distance on my way to the mat to deliver my bowls! When I delivered a bowl, I would consciously try to control the length of my back-swing in proportion with the distance to the jack. This is not best practice!!! It is just what I thought I had to do.  I didn’t believe I could depend upon the subconscious or the intuitive to help. Well the good news is: I was wrong. Even better news is: you don’t have to worry about it. So long as you take the time, standing on or just behind the mat to visualize the expected track of the bowl you are about to deliver, then, with experience, any attempt at conscious control of your arm speed will just fade away. If my experience has any generality, you will just one day say to yourself, “Gee, I’m not doing that anymore.” I still quite regularly ask how many meters the jack is past the hog line, but now it is just to give corroborating or more precise data to my subconscious control system. The caveat is the importance of imagining and visualizing, as best you can, the path of the bowl.

Proper Visualization of the Course of Your Lawn Bowl: the Final Secret to Controlling Weight

Barry Pickup says, “Study the track your bowl takes en route to the head. Learn that track, memorize it. Learn to visualize that track before you deliver a bowl. A properly delivered bowl will always follow the same track unless deflected by a foreign object or uneven green. Learn that track well and you are a long way towards bringing a bowl to rest exactly where you want it.”

Before a high-performance lawn bowler delivers a difficult shot, you will often see him or her standing about halfway down the rink looking at the head or walking backwards towards the mat. What is going on in that person’s mind?

I think after examining the head from near the forward ditch, the expert bowler has already made up his/her mind what shot to try. This close up looking from the direction of the mat most probably relates to the visualization of the shot. From the mat, the crucial details of the last few meters traveling of the bowl cannot be visualized. Often the bowl has already disappeared from view among the other bowls.

Before starting to roll your actual bowl, you should have rolled an imaginary bowl and followed it on its path all the way to its final resting place. It may seem like a waste of time. You may be put off because it seems no-one else is doing this. I resisted for five years! There is no obvious logic in it; but, it will improve your weight like nothing else will.

Weight Control at Lawn Bowls according to Ralph Ellis

by Ralph Ellis

The following article concerning weight control in lawn bowling was written by Ralph Ellis one of the Canadian lawn bowls coaches. I think it may be of interested to many readers, particularly bowlers with five year’s experience or less. Weight control articles are among the most frequently referred to on the Greenbowler blog. 

“How do I control my weight?” David Anderson's reply was “There is no “magic solution in a bottle. You have to discover it on your own.”

David's answer was quite correct but after the session I told David Burrows that I objected to us not being more specific about the mechanics of weight control. David logically said that I should write an article about the mechanics and work with the coaching team. That is where this comes from.

How do lawn bowlers control their weight? The simple answer is that we do it exactly the same way that golfers, basketball players, baseball pitchers, and quarterbacks do it. We feel it.

When LeBron James sinks a jumper fifteen feet away from the basket on the left side of the court, he does not measure where he is standing, check his angle, and then make the shot since by the time he does all of that, there are two defenders there. By constant practice and natural ability, he knows what it feels like to release the ball from that distance and angle and he can tell you if it is going in or not long before it reaches the basket. The more of a natural athlete you are, the simpler this process is.

One of my more interesting coaching discussions about weight control was with Kevin Jones back at the WOBA in the 1980s. I asked him how he controlled his weight. Kevin replied, “I throw it harder or I throw it softer.” I laughed and said “Yes Kevin - but how do you throw it harder or softer? Do you keep your step and swing the same but vary your arm speed or do you keep your arm speed the same and vary your step and swing.” Kevin looked ticked off and said “What do you mean? I throw it harder or softer.” Kevin and I were speaking a different language.

The three most natural lawn bowlers that I have seen in my lifetime are Kevin Jones, Dave Houtby, and John Haggo. Each of them steps up and instinctively throws the bowl with apparently little thought. This does not mean that each of them does not practice hard to produce the results that they have gotten. What it does mean is that natural athletes in any sport automatically gravitate towards automatically using feel to gauge distance and weight.

What happens if you are not a natural athlete? What happens if you are me? I never played any high school sports and aside from some talent in long-distance running, I never really displayed any inclination to sports at all. I did lawn bowl from 12 years old and I am by nature analytical.

The two big theories on weight control when I started playing in the 1970s were:

1) Ezra Wyeth – keep the step and swing the same and vary arm speed and

2) R.T. Harrison and the theory of elevation – keep the arm speed constant and vary the height of the stance, the length of the swing, and the step.

Wyeth's approach is simpler and quite frankly, probably the correct approach; however, I felt more comfortable with Harrison's views and based my delivery on it, including winning a Canadian Championship in pairs. It worked for me because I was younger and more athletic than I am now so the complexity of the movement was less of an issue.

On fast greens, I bent my knees and kept low to the ground.

On slow greens, I stood up straight and took a big backswing.

Complexity does create issues as you age and when I returned to bowling after a five-year hiatus at 54 years of age, I found that the old delivery did not work for me anymore.

Rod Carew was one of the great hitters in Major League Baseball. He had 4 different batting stances depending on what type of pitcher he was facing. He won four consecutive AL batting titles. How many players copied him? Virtually none. His stances worked for him but teaching it to other players is a nightmare. For athletes in almost all sports, simplicity is the key to success.

The more that you limit the number of variables, the better your odds are of having a repeatable, dependable delivery.

Wyeth's approach is very similar to the South African clinic style where players have the lead leg slightly in front; step and plant the lead leg along the grass line and then push the bowl up the green.

Why do we not see this simple delivery more in Canada? Because our greens are so slow with over 90% falling below 12 seconds, players have difficulty sending the bowl up the green with just arm strength and also need to add a large backswing and a long step on heavy greens. South African greens average 12 to 16 seconds, so a set, controllable delivery makes more sense in that environment. If you are going to have a simple delivery, that keeps the step and swing the same and relies on arm speed in Canada, you will have to devote some time to physical fitness. Yes, you may have to do push-ups and chin-ups to be able to reach a full-length jack on a 9-second green in Canada.

If you want to succeed in our sport, you will need to devote some time to fitness. Anyone who has a longer competitive career in our sport keeps in shape. There are rare exceptions to this rule but playing out of shape is not a way to get an advantage.

After you have the basic physical tools in place, how do you develop your sense of feel if it does not come naturally to you? Start by putting the jack away. Go out on the green. Relax and throw a bowl in the most comfortable manner for you. Pay attention to how it feels. Step up and do it again without worrying about distance or targets. You will quickly notice that most of your bowls are tending to fall at a similar distance. This is called “Natural Length” and it is the first step to discovering weight control.

Most people when relaxed can duplicate one particular length again and again and this is their favorite length. Some people have more than one natural length. I have four. These are the same lengths that I throw again and again in competition.

Step one is duplication. Teach yourself how to throw the same length repeatedly. You may discover that you have more than one favorite length just as I do. Practice duplicating these lengths.

Step two is adjustment. Take your natural length(s) and start adding or subtracting weight from them paying attention to what it feels like each time that you add or drop weight. What you will notice over time is that you can tell if your bowl is heavy or light within a second of it leaving your hand. I have often told people after I deliver that my bowl is two feet heavy or one foot short just after delivering it.

Pay attention to your bad bowls as well as your good ones. That short bowl that you threw in a game may be the length of the next jack toss.

Gradually, even if you are not a natural athlete, you can teach yourself what different weights feel like and what the adjustment from these set weights feels like as well.

This is the “Magic Solution”. Teaching yourself feel.

There are some other factors to keep in mind. You want your delivery to be as smooth and fluid as possible. The enemies of weight control are:

·         sudden jerking of the arm at the end of the swing

·         standing up too fast as you release your bowl

·         dropping the bowl instead of releasing it on the ground and

·         chasing your bowl or leaning into your delivery to add weight.

On this last point, you will say “What about all of those champion Scottish bowlers who keep chasing their bowls?”

You can chase your bowl if you chase it the same way each time or if you only chase your bowl after it is fully delivered and on its way.

Overall your delivery should look the same each time without any jerkiness or extra motion.

I will also mention that keeping the step constant is critical for maintaining your grass line and release point. Try delivering a bowl but take a different length step each time. You will quickly notice that your grass line is changing constantly. A constant step not only helps with weight control but also keeps your bowls on the line that you intended.

Anyone who has played against me can tell you that I am a 30% better player when I throw the jack. This is because I get my weight for my first bowl from the jack toss. I will do a second article on how to do this but, in essence, to throw a bowl the same distance as a jack, it has to be thrown anywhere from six feet to nine feet heavier than the jack to reach the same point. I will not get into the mathematics of this in this article but it is the next step to becoming a great lead or singles player.

Now that you have the magic solution, what will you do with it? Go out and practice, practice, practice. In most sports, the ratio of hours practiced to games is about four or five to one. This is a good starting point for developing your game. See you on the greens.

The Control of Weight at Lawn Bowls

For the novice lawn bowler, the first consideration in bowl delivery is the control of line or learning to take advantage of the particular bias of your lawn bowl. I suppose this is the first instinct because the arcing path of the lawn bowl is its most distinctive, and non-intuitive feature. As beginners we expect an approximately round object to roll approximately straight! When we find it does not but has a controllable arc and when our instructors offer an insight into how to master this, doing so is our first desire. However, more significant for how close to the jack the bowl ends up, is the influence of the initial speed or ‘weight’ with which the bowl is laid down.

Very few instructions enumerate all the variables that determine this initial velocity. Barry Pickup in his PDF file names them all although he does not provide them in a clean list and all he says about selecting some combination from them is “The fewer variables you allow into your delivery technique, the easier this muscle and memory training will be and the more accurate your bowls will be.” 

This article contains one sentence that is actually at odds with my own observations. Pickup says, “Since the position of your arm as you assume your stance on the mat has an effect on the amount  of back-swing you use and thus the degree of arc in your overall delivery swing, this is a good place to start your adjustments for varying weight and the distance your bowl travels.”  My own bowls teacher has a very gradual, very measured backswing that is quite unrelated to the position of her arm as she takes up her stance on the mat. I have adopted this. Where I start my pendulum motion is fixed and completely unrelated to how large or small my backswing is. Nevertheless, Pickup’s is the most complete presentation I have found and the most useful to me.

The elements that contribute to the distance a bowl will travel are:

 back swing elevation
degree of crouch
length of your stride
release of the bowl above the grass
rotation applied by fingers if any
arm bending at the elbow
added muscular acceleration from the arm
wrist bending at release if any


I have tried to list these in the approximate frequency with which I have observed them. Most deliveries are some combination of the eight elements.

Updating the Control of Weight at Lawn Bowls

At the Turramurra LBC near Sydney Australia, when I sought help to control the weight of my deliveries, Bob Hawtree, one of the coaches, told me to really look closely at  the distance of the jack from the mat and silently in my head ask the question, “What does it feel like to bowl to a jack at this distance?" I was told this would elicit a response from my muscle memory. Then, “You should simply bowl with that memory in your mind.”

Essentially this means don’t first try estimating the number of meters from mat to jack and then putting a number on it. Rather, let your internal computer take the data from your eyes and let it control your muscles directly.

I was not spending enough time just looking carefully at the distance of the jack from the mat and letting that feed to my ‘mental computer’.

This advice must, of course, be combined with a fundamentally reproducible delivery motion. The coach emphasized three things for me in this area: the position where the bowl is released (about 6 inches in front of the advancing foot; the point in one’s swing where the step out begins (the bottom of my backswing); and the height to which one raises one’s arm in the follow through (not more than the height of the knee). 

Gratifyingly, this works amazingly well! I have dramatically upped my game. This is in fact the most significant improvement I have made in years!

Interpreting What You Can See from the Mat

Above you can view a head of bowls with a long jack as seen from the mat (top) and then taken from just in front of the head (below). Using the rules in the table below you can quickly work out the disposition of the bowls without visiting the head. 

In order to bowl the proper length, you must be able to provide accurate information to your subconscious computer.  You need to tell it whether your last bowl was long or short and by how much. Particularly in singles, this must be done at least part of the time by an estimation done from the mat. You can't go back and forth to the head after every bowl! Even in non-singles games, some skips may not be competent to properly and concisely convey important information. Other skips may modify the truth to save your feelings or as part of their own strategy to correct your play. Such misinformation will only confuse your natural gift for making adjustments.

In lawn bowls, the jack may be placed anywhere from 21 meters to 29.5 meters in advance of the front edge of the mat. My eye level is 66 inches from the ground (I am six feet tall). Thus at 29.5 meters the angle between the horizontal and my line of sight is 3.25 degrees. When the jack is at 21 meters, the corresponding angle for me is 4.56 degrees. My bowls when lying flat have a height of about 4.25 inches and these bowls' diameter is 5 inches, so standing up each has a height of 5 inches.  A jack’s diameter is 2.5 inches. Doing the calculations I get the numbers in the table below.

	Completely see Jack behind Bowl	See half Jack behind Bowl	Completely see Bowl behind Jack	Completely see Bowl behind Bowl
Short Jack	Inches	Inches	Inches	Inches
	49.5	33.9	27.6	53.3
	Feet	Feet	Feet	Feet
	∿ 4	∿3	∿ 2	∿ 4.5
Long Jack	Inches	Inches	Inches	Inches
	71.1	49.1	40.3	74.8
	Feet	Feet	Feet	Feet
	∿ 6	∿4	∿3.5	∿6

It is worth noting that a bowl can be as much as two feet in front of the jack and still completely hide it, so even though the jack is covered a good draw can readily become the shot bowl.  Also, even if the jack is completely hidden as seen from the mat, there can be plenty of room to catch and trail the jack without touching the covering bowl.

The Secret to Controlled Weight Delivering Lawn Bowls

I learned something today that was so startling and made such a dramatic difference that I was tempted to keep it as a secret- just for a year or two- I thought. Why should I share the secret? Then I thought again, “What is the point of writing a lawn bowling blog especially for novices if you hide the most important thing you discover?”

So here it is! You all must have heard, “It doesn’t matter what your style, consistency depends upon reproducibility of the delivery whatever it is.” This is true; but, I didn’t realize how precisely the statement must be interpreted. You need to be able to reproduce the same form exactly, in every detail, even those things that you think can’t be very important. This is why simple delivery styles are best, even though any style can be perfected. Uncomplicated movements are the easiest (I didn’t say easy) to repeat consistently, end after end, season after season. There is a valuable dividend that follows from this simplicity. If your style is reproducible in every little respect then your mental computer will make corrections to the speed with which you release the bowl to correct for previous short or long bowls.

I say I have magically improved my draw accuracy. What was I doing inconsistently before? My follow through was not sufficiently controlled. My bowling hand came up somewhat higher sometimes than other times. My fingers flexed sometimes while remaining straight other times. I would not have expected that these are consequential differences, but they are. 

I discovered these differences watching professional indoor bowlers on Youtube and asking myself, “How does my delivery deviate most from theirs?” The answer was that, in the follow through for any draw shot, their hands were still pointing to the ground. They never raised their bowling arm more than 45 degrees from the vertical. They stopped the arm rather more abruptly after releasing the bowl and never curled their fingers up. Moreover, many of the best players followed through by walking. with halting measured steps off the mat following the line of delivery and as they watched the progress of each bowl. See for example Foster and Marshall in http://www.youtube.com/watch?v=Zql2KzXudGI who exhibit this distinctly. With these two champions the exaggeration of these points makes it even easier to see.

So now I keep these little things constant, concentrate on a smooth release onto the green and let my subconscious computer determine the weight. All I tell myself is whether the jack is short, medium or long while I look carefully at its position. I don't consciously measure my backswing the way I did when I started! 

I Can’t Even Accurately Estimate the Length of the Jack in Lawn Bowls

It takes a novice, like myself, several years to learn to control one’s body sufficiently to more often than not deliver a bowl with the proper grass, even on a perfectly level rink; however, in my opinion, this is child’s play compared to the difficulty of delivering with controlled weight. The fact is that standing on the mat I cannot even accurately estimate how many meters down the green the jack has been thrown. If my brain cannot determine that distance how can I instruct my muscles how much force to apply to my bowl? This inability to estimate the distance is more severe if I am playing on a middle rink. The closer I am to the edge of the green the easier it is to gauge the distance helped by looking at the closer side boundary. Often the edge of the green has its own calibration used when the bowling is proceeding cross-wise.

In this respect, the skip has an advantage over colleagues since when (s)he bowls (s)he knows from being at the head exactly where the jack sits. I would appreciate a skip who tells me (1) how many meters behind the hog line, or (2) in front of the front ditch, the jack is. On the occasions when I have asked, skips look at me quizzically or grudgingly. Sometimes they pace it off as if it was unnecessary information that I ought to acquire by myself. How can I be expected to deliver a bowl within a meter of the correct length without knowing that distance?

Perhaps this is a particular deficiency in me but what can I do to improve it or hasten the acquisition of this skill?