Mills gets knocked around now because most people who stayed in the "trenches" long enough were able to understand that his system was limiting the throwers maximum velocity ability..... even his own son. Case in point is the video featuring his son. The on tape instruction did not follow the on tape performance. I called Mills to the mat on this, and his only professional email response to me was that "a well respected coach who reviewed the tape was not so much interested in what Ryan was doing, but rather in what I (Mills) was saying." Those who say that his system can be used as a starting point haven't a real understanding of what it takes for the human body to make change. So if you start your young player out incorrectly (not understanding what it takes to throw hard) then your young player is at a huge disadvantage due to the correction process...... the older the set mechanics are, the longer the correction process takes.
............. then again, it's hard to convince anyone of this if you aren't an ex pro instructor.