Feel free to read a very spirited debate on the subject HERE: http://www.bowlingboards.com/threads...se-your-scores
However, I will say that in my defense I have changed my opinion on this a bit. Not entirely...you'll still see high level bowlers that add "something" to the ball during the delivery. Nowadays they call it "adding hand". But I now have a better understanding of the advantage of a smooth swing, quiet shoulder, etc...
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