Re: anchoring - the great debate
My opinion is that what works for you is more important than what works for somebody else - the great players all had to figure out the best way for them to achieve their technical ability - I just think that the great players figure it all out sooner than us mere mortals!
Of course we will all look at our idols' technique and try to draw benefits from it - that's what they all do too!
I bet every top player has changed their technique drastically at some point in their playing - this is the thing about guitar (and any instrument) it is a lifelong voyage of discovery, finding new 'tricks' and ways of doing things - when you figure something out you wish you had figured it out sooner, or if somebody had told you it before, you might be further advanced - when we do this we become slightly disillusioned, forgetting the true value in those years spent.
I don't think either way is better, just different, and where 'medical' stuff is concerned I really doubt there are any concerns in this area.
I hope some of that made sense