I found this driving lesson from Lee Trevino. Trevino got criticized a lot for how different his swing was from the accepted standards of his time, but his style has become more acceptable lately -- especially since players like Rocco have used his short game techniques with a lot of success. And given that he won 6 majors against players like Nicklaus and Player, I think he knew what he was doing!
I'm not going to comment on this today because it's a fairly long video that covers a lot of ground. But you might find some useful info in it... and yes, a lot of it seems to contradict current thinking.
Actually, I don't think it really contradicts anything... but Lee describes things differently than a lot of teachers. Like I said, I'll come back to this video later and compare what he says to what some other teachers teach.