You have 20 secs to serve, right? When does that countdown begin, since I assume that having to fetch balls etc wouldn't be part of the 20 secs. I ask because I played a league match and one of the guys on the other team had the LONGEST serve prep. He did a bouncing squat at the baseline for a few moments while staring off into nowhere, then stood up and proceeded to individually stretch and shake out both wrists, and then finally would begin what you consider a regular routine of bouncing the ball multiple times and serving. Drove us nuts! Sometimes he even did his routine between first and second serves. I don't get petty about little rules, since USTA is about having fun for me. But this was beyond annoying, since I felt like I was just standing around for his service game.