Originally Posted by Topspin Shot
Federer is probably the best model though unlike Pancho, Federer uses a platform stance.
Fed doesn't have an abbreviated take back like Pancho. I think Pancho's serve is really beautiful, though I wouldn't be copying how he lands on his right leg (a product of the old serve and volley days).
Roddick springs to mind as having one of the most pronounced abbreviated take backs in recent time.