Dan Blewett of Warbird Academy wrote a great post on the NPA-style holds that Steve Delabar popularized through Tom House and Jamie Evans, and I urge you to read it: Holds, Pitching Velocity, and Tom House Tennis Analogy.
Dan makes a TON of great points, one of which I wish I was smart enough to have realized myself when it comes to our Ballistic Reverse Throws (he even embedded our video):
Baseball pitchers internally rotate to throw a pitch. This means that three of the four rotator cuff muscles are eccentrically decelerating, not accelerating the ball. Thus, these three muscles – the supraspinatus, infraspinatus and teres minor – rarely get any concentric strengthening in the sport itself. This is not the case in tennis.
Rather, tennis players hit backhands, which is a concentric exercise for the scapula retractors, external rotators of the cuff and other back muscles. When Tom House talks about balance, he […]