Enjoy your site and welcome to this forum. I agree with his tempo being too slow, at foot strike, his arm isn't at its highest point. I also think his follow-thru puts some undo pressure on his shoulder as far as deceleration with a slight recoil and the lacking of what should be a more peaceful slowing down process of that great arm speed. Part of it might be caused by him flying open and throwing across his body when he breaks down mechanically. Thanks for the warm welcome, everybody!! PingHitter, You may be right though I can't say for sure. I'm not exactly a fan of his front side mechanics...you'll notice if you look at each graphic his glove is more by his side at release. He does firm it up, but I would rather see him firm it up earlier and have him keep the glove out in front of his chest. This is said to help protect the shoulder from some of the pounding that naturally occurs through pitching. I wasn't aware that he had a big problem flying open, but if he did, I would bet his front side mechanics would be a possible cause of that.