It is pretty well understood that one side of a
rink is often more forgiving of line errors than the other. In contrast, there
is an incorrect belief that the narrow hand is invariably the more forgiving
hand. As well, few understand that whether a hand is forgiving or not depends
in a complicated way upon the bias of your bowl, the contour of the green, and
the position of both mat and jack, not whether the hand is wide or narrow.
The most common example of a situation comprising
a difficult hand arises when a visually imperceptible ridge runs down one side
of the rink. If your line runs on one side of this ridge the bowl is held out,
while on the other side the bowl swerves down like a surfer coming off a big
wave, and runs across the center line. This kind of inhomogeneity sometimes can
be counteracted by repositioning your feet (‘using the mat’) moving from a more
central position to one side or the other, so that your bowls display
consistently one behaviour or the other. The new more generous foot-fault rule
in the new World Bowls rules (Crystal Mark 3) makes the mat effectively wider
and so more useful in this regard.
In contrast, a very forgiving hand arises when, for example a visually imperceptible, shallow, concave dip (like a broad shallow gutter) runs down one side of the rink. If your bowl’s path is too wide, the valley wall draws it back; if your line is too narrow the opposite valley wall pulls it out. This helpful ‘dip’ may be found with equal likelihood on either the nominally narrow or wide hands.
In contrast, a very forgiving hand arises when, for example a visually imperceptible, shallow, concave dip (like a broad shallow gutter) runs down one side of the rink. If your bowl’s path is too wide, the valley wall draws it back; if your line is too narrow the opposite valley wall pulls it out. This helpful ‘dip’ may be found with equal likelihood on either the nominally narrow or wide hands.
As noted, these concave or convex contours cannot
be seen. They deviate from flat by so little that they are imperceptible. Yet
they are sufficient to measurably deflect a bowl. They cannot be detected by
rolling a single bowl.
There are clues however. Missing an established stare point and still ending up close to the target is a sign of a forgiving hand. Conversely when two of your bowls are delivered with much the same weight and both roll over your stare point, but end up far apart; this is a sign of an unforgiving hand.
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