He's busy as a house on fire, but Chris Miller is probably the best person in the history of the universe (and no, I'm not exaggerating) to answer this question. I can't say enough good things about his abilities and his ability to teach, a rare combination. I agree with Jim Pettitjohn about teachers from outside the culture - Dirk Powell, Jonno Frishberg, and our own Big Nick are outstanding - but Chris is the gold standard. No one plays better, and no one teaches better, period, in my humble experience. And he's a really good guy, to boot. We are VERY lucky to have him weighing in on this board now and again. I'd be interested to know how he'd answer this question, if he has the time . . .