Best Backswing For Low Point Control
Looking at the above images which one do you think would be a better position for you to be in to contact the low point.
The image on the right is correct, where the professional has side bent left as he has extended his spine.
At the top of the backswing you need your spine side bending to the left. Without side-bending the movement would be similar to hitting a baseball off a tee.
The amount of necessary side-bending, however, can vary depending on the shaft length of the club that you are swinging. For example, you would expect to see an increase in side-bending with a pitching wedge, and a decrease with a driver.
This is very similar to how a high jumper does what is known as the frosby flop.