I am not so sure here is a link to a recent article in bowling this month where he refers to recupping the wrist at the point of release to help get the thumb out of the ball.
http://www.bowlingthismonth.com/?ema...=subscriptions
This confused the devil out of me. Also if it is as you think Rob is saying what is the difference between that and what we used to call "hitting up on the ball" that I didn't think you were supposed to do anymore.
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