It is correct to let the index or forefinger loosen off the cue somewhere around the time just after you hit the cueball. Most good players do this and if you happen to get a BBC view of them delivering the cue and can see the grip you will see the grip actually transfers to the back of the hand at the end of the delivery and the forefinger is up off the cue.
This allows the cue to stay level throughout the delivery and follow-through, which is a very important point.
Terry
This allows the cue to stay level throughout the delivery and follow-through, which is a very important point.
Terry
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