I can't imagine an easier pre-shot routine than Yogi's. He even suggests using it on putts, only in miniature. It's quick, and simple, and like any pre-shot routine, takes the stress and guess-work out of setting up to the ball and the shot. I had a little troulbe getting used to the foot placement technique, but have managed to hold onto the same routine for about ten years. I also notice when my routine gets sloppy, everything goes downhill from there.