The post below (is it ok to hit back a fault) got me thinking about a topic that's probably better for a separate thread. Is it ok to practice returning serve during the warm-up? I'm not talking about blocking back the ball when you're finished serving and your opponent wants to take a few more, I'm talking about trying to get grooved on your return. In the code, I think it specifies that practice serves should only be returned to get the ball back the server, don't really remember, though. Because I have a decent kick on my serve, I generally don't want my opponent to get too grooved on it. So if possible, I try to warm it up before hand, and if it's clearly he's trying to figure it out by cracking returns during the warm-up, I'll often stop serving and tell him I'm ready, but allow him as many serves as he'd like.