Nah, I know nothing about mechanics. But if you'd care to read your own post, and the recent 3, you'll find people have problems trying the low toss, and that includes pro players, which is why very few adopt a toss that is only as high as the strikezone. Shoulder problems ensue. As for Pancho, don't look at the posts, LOOK AT THE VID! Nobody would teach his motion nowadays. It worked then because he was a superior athlete and 6'4" tall, a giant compared to his contemporary's. LOOK AT THE VID, then you can criticize what I say.