There are certain aspects to great players that are unique. Having the racquet pass over your head in a “hair brushing” or “saluting position” is NOT one of them. Every great serve wether on tour or at your local club utilizes this palm down motion. The key position and motion are critical for allowing body segments to properly load for power and also to get you one step closer to leading into the ball with the edge of the racquet a piece of the serve that allows for spin. Spin is the major driving factor to having a consistent serve that still has pace.