When Nadal first came onto the scene he had a pretty high and long backswing and drives through the ball more often. http://www.youtube.com/watch?v=I-1jHJ3-fAY&feature=related Over his career he seems to have shortened his backswing (now he seems to just take the racquet down instead of pulling it back) and goes to his reverse finish more often. (Reverse finishes not in the video but you can observe this in matches) http://www.youtube.com/watch?v=-B1PWHqy7ns What do you guys think? I personally think it is to improve his recovery between shots so he can run down the next shot faster. Has it got anything to do with his improved success on hard courts?