When I met with Yoda we discussed this very issue. He told me that we would go get legal pads and make a list- him with left heel up major winners and me with not. He rhetorically asked me whose list would be longer? Even dumb ol' me knew that answer! I have kept my heel on the ground for years and still struggle with it. However, when I do it AND maintain a steady head, and turn the right hip straight back from the target line, the stroke feels so free and the ball goes much farther. In fact, Lynn and I talked about this very issue- right hip clearing- yesterday on the phone.