@mattys posted:this is the part that got me interested, actually. if I read it right, he's saying that you can throw "90" if you can't hit the metrics and that you can hit the metrics and not be able to throw "90", but that hitting the metrics prepares your body to throw that number safely. I like that he takes this approach (on the face of it, at least) and stresses building the machine over making the machine work beyond its capabilities.
The problem with this line of thinking is that it assumes every machine is the same....aka cookie cutter approach. Randy Johnson and Marcus Stroman don’t throw the same way, place different demands on their bodies and have different training needs.