Last updated on 10-Oct-2012 06:51:10 AM
Hi Paul,
The ball must be falling on its downward trajectory before you are allowed to hit it for a serve.
The relevant part of the service rule is
| 2.06.03 | As the ball is falling the server shall strike it so that it touches first his or her court and then, after passing over or around the net assembly, touches directly the receiver's court; in doubles, the ball shall touch successively the right half court of server and receiver. |
Your illegal serve is really cool