do you think having your bowling arm going up to your left arm pit, after release , makes energy be lost on the ball! - have a look at videos of Jim Laker - his bowling hand stops at his left hip see ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wO39qhoJDCA.html also see what Bruce Yardley says here. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gLm60mOIfEQ.html