I have been wondering this question for a while: after a first serve let, where do you serve your second first serve? I have been watching the 2001 Sampras vs Federer Wimbledon match over the past couple days. At the beginning of the fifth set Federer hits a let while serving wide to the Sampras backhand (Ad court). On his second attempt at the first serve, he hits to the same spot and Sampras blocks a return winner crosscourt. I think in this situation Federer had been picking on the backhand return of Sampras all day long. He loves the out wide serve-and-volley play, and typically it was working. But after a let, was it wise to go to the same spot? Sampras got a nice practice swing at the first one, and then crushed the second one. Personally, I almost always go to the body on my second first serve. I figure my ball is traveling over the lower part of the net, and I have greater margins for missing the shot wide. The only time I will go back to the same spot is if the opponent has a glaring weakness. Where do you typically go on your second first serve? To the same spot, or do you mix it up?