The Power Fan is the easiest and most effective product for increasing distance and control.  You'll find the resistance point is at the impact position, showing you how to correctly release the energy onto the golf ball.  

The science behind The Power Fan is all about air resistance.  The four-finned design makes YOU do the work throughout the entire swing... instead of the club.  The main benefit The Power Fan will provide for you is increased club head speed = increase in distance.