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Taro, if you predict with success every +95mph pitcher to have an injury, you will mostly be right. However, this inverted W stuff has got to go. Its a very complex issue with little in the way of predictable results outside of your claims of lousy mechanics for nearly every pitcher you speak of. An 'inverted W' means nothing, having a ball pointed towards second base means everything, its the start of consistent arm action, snap on the curve, run on the fb, and isn't unknown to everyone not subscribing to Driveline Mechanics. Do guys, doing what I describe, still get hurt? Yep, and they always will. Un-natural motion, perfect mechanical pitchers only get the most out of their bodies, they DONT prevent arm injuries.