In a smooth delivery the bowl is grassed without wobble. Wobble is that side-to-side
shaking of an improperly delivered bowl. It is most pronounced immediately
after release. Wobble usually corrects itself before the bowl finally comes to
rest and for this reason many lawn bowlers think it has little effect on the precision
of their deliveries. It is only, they think, that when wobble becomes very
exaggerated, as when it is called a pineapple, that it has an effect on both
the intended weight and line.
Bowls that take little grass are the most susceptible
to wobble from improper delivery. There has been considerable controversy about
narrow running bowls, sometimes called ‘cheater bowls’. These bowls are legal according to the present
International Rules of the Sport of Bowls. They have a running surface engineered
with a cross sectional curvature such that, when tested, without introducing
any wobble, on the standard bowls testing table, the bowl does take the approved
minimum grass (bias from straight) set by the International Laws of Bowls. Yet,
if the same bowl is delivered, on the same testing table with some wobble, it
does not curve the required amount. Furthermore, and what is of more
practically significant, when it is delivered under outdoor conditions on grass,
even without wobble, it again does not show the minimum bias exhibited by a
standard bowl under the same conditions.
Since I am a novice, I am most often playing lead in competitions and I have
chosen to use relatively narrow running Taylor Vector VS bowls. Since my entry into
the head is unlikely to be seriously blocked, the shortest path to the jack is
the least likely to suffer misadventure. But there is a linked risk. On a less
than perfect rink, the effect of wobble seems to be compounded. Perhaps the
combination of momentarily running on the edge of the bowl’s running surface
and a sudden deviation in the green surface seems to throw the trajectory off more
significantly. I have noticed that on the James Gardens’ synthetic surface,
where the seams are beginning to appear a bit raised above the rest of the
surface, delivering with any wobble can significantly divert my bowl from its intended
path. Thus a smooth release of a perfectly upright bowl becomes a high
priority.