Wil knows his stuff. It helps to spend a week at his place too!
I'd have to say the best inspirations and teachings for accordion I've ever received, were from Marc Savoy, Wilson Savoy, Dirk Powell, Ed Poullard, Jason Frey and Paul Daigle.
I gotta check out Steve Riley's vid. Would go to Augusta this year but most of my friends will not be there.
I just recently received the Steve Riley CD.He does more good stuff by accident than by design. While the content is way beyond me right now it won't be long. Wison's presentation is streightforward and understandable. It is a good value.