I had great luck with Don's method. I went to it after an injury, and I couldn't believe how much easier it was on the back. Over time, I drifted away from his method because, like clubs, "there's always something better out there, right?" However, recently I have been having a bit of consistency issues and my lower back is pretty much gone by the end of the round (getting older sucks). So, I have been moving back in Trahan's direction, limiting my backswing and turn, swinging more upright, and driving a little more with the arms. I have found that my ball-striking and accuracy has really improved again. I don't like Don's "I'm right and everyone else is wrong" approach, but when I was using his method I hit the ball really consistently, accurately, and just as long as ever (maybe even longer). He's certainly worth a look, particularly if you have any back issues.