On trailing arm, it creates an inside path to the ball for more consistency. The elbow Tac-Tic was designed to give the same type of feedback to a player who breaks down at the elbow. When you watch the more powerful and consistent players on tour, it is evident that they keep their lead arm fully extended during the backswing and throughout the impact position. Simply put, the wider the arc of the arm swing, the more power generated through the clubhead. Many players have tried to keep their lead arm extended during their swing, but fail because they cannot feel the arc, unaware of a break down at the elbow.
Many players misunderstand the proper position of the right arm throughout the golf swing.
Many golfers actually try to keep their right arm close to the body during the backswing, narrowing their swing arc end, limiting their power, distance and accuracy. The right armshould extend away from the body, beginning the bend midway back then reaching a right angle at the top of the backswing.