I would definitely agree that I lack knowledge of Bertholy and his methods. My point was nothing more than when you put your information out there you create more questions. For example when you say he didn't talk about the grip and left it open to variations - I would ask "How much variation". I am only asking this because this is what we would get asked if we left our instruction open to that much variation.
I also am adamant about building a swing and then learning to play. But that is not the reality of the world of golf instruction. IF you are going to help people you must deal in reality some of the time.
Once again, I was not arguing Bertholy's method, I was only making the point that once you decide to become a company that truly helps people, you MUST do more than just produce a book and throw it out there for people to interpret and mis-interpret.
And if you decide to produce videos, this is much different than writing a manuscript. You will end up producing many videos to explain even the most fundamental concepts - which is why you see the numerous GGA Videos.