You need to try it for yourself. Only then will you fully grasp it. Chaz Pippen was the inventor. The original idea was used for the stride foot stepping outward. So they put elastic bands pulling the leg out. The batter HAD to use muscle to step straight or else they would fall down. After a few dozen swings, the batter stepped straight automatically! The idea for the arms as born.
Its much easier to build muscle memory when your actually using muscle. This tool will build the correct posture in the upper body so that the hands will be in the proper position to "turn the barrel"!!!! All I'm saying is don't knock it until you've tried it.
