[lagster]

I think the PGA does not want to adopt a single teaching system or book.
They have over the years used different books, and manuals for it's apprentices, to help teach them about golf swings, and teaching golf. The Flick/Toski book, Gary Wiren's book, Rick Martino's book, and there were others. Some basic TGM would definately be helpful for the apprentices.

Some of the TGMers do occasionally teach at PGA seminars and Teaching Summits. Tom Ness, Chuck Cook, Chuck Evans, Ben Doyle, George Kelnhofer, and many others have taught, or spoken at PGA functions.

I actually helped get TGM back on the approved list for education points just 8 or 9 years ago. It had just about fallen off the map. The TGM website, and then Lynn's site has helped bring TGM to the world.