I was going to add my 2 cents at the start of this thread (as I usually do
), but refrained as everyone seemed to be giving J_Mac the good story.
However, I just realized one point hadn't yet been made and it had been a problem for me for a long while. When people say to stay behind the ball, they can also mean this:
You are turning the ball too early and your thumb is still in it. This is not a good thing and will often result in a lower track and some smaller faults like, too much spinning and reduced revs, among other problems. One should not turn the ball or even attempt to turn the ball until the thumb has at least started to clear the hole, if not cleared it all the way. This always results in a better roll, stronger hook (not necessarily a bigger hook) and a cleaner, easier release.
This may not have been your problem, but it is also one other meaning behind someone's saying, "Stay behind the ball (more)."
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"When we choose an action,
we also choose the consequences of that action.