Tim, you are in the right place here at LBG. You have asked some really good questions that are quite relevant. I am 55 and have played lousy golf for 42 years and mediocre golf for the past 2. And that is why I am getting hands-on instruction from some TGM/AG disciples. If you haven't purchased The Golfing Machine book, I would advise you to do so. It helps to refer to the book as you read many of the posts. Enjoy your journey, Jeff P.