I would greatly appreciate any tips to improve the consistency of my serve. I'd be especially grateful for a handful of tips I can implement during my next practice session. I'm attempting topspin serves just to get the ball in play, but I'm still hitting about a third of them into the net, and about half of them out. This video shows the best I could manage. http://vimeo.com/7558834 I'm definitely doing something different each serve, because they're all coming out different. I think I need to aim my toss over my head more for topspin serves. Does that sound right? Should I be tossing the ball with a more right-to-left arc? From reading the boards for a couple months, I've found the community here enthusiastic and helpful. Thanks in advance.