I HAVE read the book-I can read!
I asked the question in order to get opinions because shot shape is not mentioned much -apart from references to " Five fundamentals"-bowed left wrist for a fade ,flat for a draw.I do not want to bow my wrist ,so I move the ball location as per TGM swinging proceedure .The book does not advocate this,it advocates a constant ball position in relation to the left heel.
Hence my question to promote discussion.