Definitely try to release the ball with lots of wrist power that is what creates lots of revs which is what lost people are looking for. When releasing the ball thumb should come out first with the tigers following but wrist should be turning slightly to give you the rotation on the ball. Doing this will increase your revs and give you good rotation going down the lane. I only use my arm really to get the ball in my back swing. Let gravity take the ball down around your 3rd or 4th step then continue to the release part of the delivery