My son has started working with a new hitting instructor who is preaching NOT letting the top hand come off the bat during the swing. We had been working on getting my son to extend better through the ball and his top hand would come off occasionally. Now that he is concentrating on not releasing the bat with his top hand, he has started wrapping the bat around his head on his follow-through and has not been hitting as well. Occasionally he will make good contact with good extension and his hand will come off the bat. His instructor will tell him that he hit it well, but keep your top hand on the bat. I am all for keeping the top hand on the bat through the hitting zone. This is a must to successful hitting.
This leads me to the question, should a hitter try to keep his top hand on the bat all the way through the finish, or is it OK to let it come off.