I have read the book but I have only worked on the first two Dynamics, and only a few times at the range. I played today and my ball striking was better than it's ever been. hitting my irons and hybrids longer and straighter than ever before.
What I do is focus my eyes 4 inches in front of the ball and aim my hands at that point on the down swing, IT WORKS. think of it as aiming the end of the club handle four inches in front of the ball. DON"T AIM THE CLUB HEAD, Aim your hands, and the club head will follow thru the ball. Man, it really works and I haven't even worked on it that much. I cannot swing my driver this way yet.
It seems almost too good to be true how well I hit the ball using this technique for the first time.