For the past dozen years, when I looked at pictures of the top professional lawn bowlers delivering lawn bowls, I was mystified as to why they tucked the knee of their anchor leg (the one that stayed at the mat) behind the knee of their stepping leg (the leg that moves forward as they deliver a bowl). Then one day recently, while I was practising my delivery motion (without a bowl!!) in the hall of my condominium in Portugal, I found myself doing it.
Why was I now doing this? Let’s see whether you would also.
Stand with one foot on an imaginary mat, with that foot at 45 degrees to the proposed line of delivery (as in the shooter’s stance). The line of delivery should run about 5 inches from the toe of your anchor foot.
The heel of your stepping foot should be level with the toes of your anchor foot, but about a foot away from the aim line. Your weight is essentially completely on your anchor foot. The stepping foot is only touching the ground for balance. The toe of your stepping foot should be pointing towards a spot on your aim line about 3 to 5 meters in front of you.
Rest your non-bowling hand gently on the thigh of your stepping leg.
Now slowly pull your bowling arm back along the aim line like it is a pendulum holding an imaginary bowl, and then step forward a foot towards that stare point on the aim line. Now, let your arm containing the imaginary bowl hang down beside the advanced stepping foot. When I do this, my hand is still a couple of inches above the ground.
Now I lower my body to bring my hand to the ground. How do I do this lowering? To my amazement, I do it automatically by tucking the knee of my anchor leg in behind the knee and ankle of my stepping leg.
Why had I not recognised this before? The answer— because I was not lowering my body enough— I was dumping my bowl these last centimetres onto the green. Most top bowls delivered their bowls right onto the ground and they achieve this by tucking in that knee!!