This is a good article that explains a little about how posture effects your arc. Please read and re-read this.
Posture is basically your setup at address, that is, it’s the way you stand to the ball before initiating the golf swing or stroke. Some people might not regard the posture as an important fundamental in putting because we see so many different methods and styles on Tour and elsewhere.
For example,
* Arnold Palmer, knocked-kneed and crouched… [Read more...]

A few weeks ago during a commercial shoot in California, Hunter Mahan was admiring Bubba Watson’s new Ping Tour Gorge wedges. At the Farmers Insurance Open, Mahan had a pair of the clubs in play. The reason, however, had little to do with his look into Watson’s bag.