I agree that tennis is an art, and you have to be comfortable and in a rhythm to be a strong server. But i still find it interesting since all modern footwork on groundies has been dissected to death and does make a huge difference in court coverage and balance. On serve it is not as discussed, but for a rec player one thing to think about is this : are you recovering fast enough after your serve to handle a ball being returned back at your feet?
In my experience this is something ignored by a lot of players, and while it is not serve and volley it is still an indicator of a stance or footwork issue on serve many times.
Please help TT Member BruceD get a wheelchair so he can play tennis again - http://tt.tennis-warehouse.com/showthread.php?t=496820