Mark Immelman, host of the On the Mark Podcast, shares 24 Advent Season Golf Tips to help you improve your golf swing. In Tip #17 Mark teaches you the "Pump Drill" - one of his favorite drills of all time. He learned it from David Leadbetter and its purpose is to properly sequence the body movement and the arm-swing in early transition between back and downswings. Mark describes the drill; illustrates how it should be done, and elaborates on its benefits. Whether you are a highly skilled golfer or a beginner, the Pump Drill will help you improve your ball-striking.