On Plane. If you are looking for consistency, this is your video. You must be on plane to be consistent.
David Leadbetter does not need introduction. In this series, he shows you the various ways that you can improve your swing. He shows you how to setup properly, how to flush your irons, how to avoid water with your driver. He also tells you how to hit your drivers long and well as teach you how to make sure that you are on plane in your swings.