Very good topic. I am guilty of jumping around like most golfers. But now I have TGM. Now it's a matter of working on my selected components. Master one, move on.
I like the post Mike O. regarding pivot controlled hands. There is some good stuff in here about why people continually try to change things, and a lot of it has to do with the concept of "feel". Feel is elusive and ever-changing. I'm sure this has a lot to do with why people keep searching for new methods and philosophy's.