The golf swing is and golf training aid are as fundamental to a golfer as water is to life on earth. If one delves into the history of the golf swing, one would be hard pressed to find another body movement that has received as much analysis.

It is simply a circular motion of the arms while gripping a funny-looking club and at the same time trying to hit a small white ball.

Simple in theory but in practice, the golf swing is a phenomenon steeped in mystery for most of us. Millions of amateurs and hackers are frustrated by their swing while, at the other end, the select few who have managed to master their golf swing, have made millions out of it.