I use the book as a reference. I see my teacher from time to time. I practice with the Tour Striker. I do a lot of basic motion with and without golf balls. I also use tennis balls.
I have a Pure Ball Striker, a TALY and a Tour Striker. I have Alignment Golf videos that I get something from every time I look at them and it is often.
I hang out here way too much and I try to play as much golf as I can to put my learning into practice.
The book, though, is a reference--a very important reference.