Keep track of the numbers yourself or simply observe a typical head. Club level players deliver bowls, mostly finish short of the jack. Is there a reason for this? Is there a cure for it?
Despite what the manufacturer of Aero Bowls says, no bowl travels in an arc that resembles the Sydney bridge! Lawn bowls have a substantial hook towards the end of their travel; the less bias the lawn bowl has, the less hook at the end, but a hook is still there. Furthermore, viewing the jack from the mat, it is the last few yards of its proposed travel that are most difficult to visualize. As a consequence, our mind’s eye simplifies things and imagines that portion of the trip as just a smooth extension of the earlier part of the path. And we estimate too short!!! The hook shortens the the last bit of distance the bowl travels down the rink.
Is there a solution for average bowlers that a skip can implement? I think there is. Place your foot about 1meter behind the jack and ask your team members to bowl to your shoe as the target. Then those bowls will finish on average longer and the number of long bowls will more nearly equal the short bowls.