If you want power, then you need a GOOD STRETCH.
Think of a rubber band. When you pull it back, you can feel the torque. When you release the rubber band, it jumps off your fingers. Same deal with the backswing. You need to create resistance in relation to your hip and shoulder turn. Most players have too much hip turn, zapping the rubber band effect – and thus zapping power and distance.
A 45-degree hip turn with a 90-degree shoulder turn equals MORE POWER AND DISTANCE.
A 65-degree hip turn with a 105-degree shoulder turn equals LESS POWER AND DISTANCE.