Watching Bobby Clampett in the early 1980's hit balls at a Kemper Open, I noticed he "pumped" his right arm towards his left as a preswing waggle, bending it twice before starting his swing. He absolutely was a phenomenal ball-striker then and I tried to copy this move unsuccessfully, not realizing until now that it was impact fix. Moving away from a low hands address and soleing on the toe has made a huge difference in my swing. The right elbow under the left completes the picture.