how long did it take your serve to mature to the level of your groundies? I play on weekends only, and my serve is always my weak point. Sometimes, my flat serves and topspin serves are just "on"; I get aces left and right. Other times, I get 1 serve in, and all the other ones are double faults. It is really bad when the first serve goes into the net or long 90% of the time and the second serve is almost slower than my groundstrokes. Nevermind serving to the backhand/forehand, or slice/topspin. I'm more worried about simply getting the ball in. I've thought about just practing my serve for a couple of hours to improve my consistency until something clicks, and I start serving consistently. In the mean time, I'm just wondering how other people have developed their serves over time.