I have been discussing with our local tennis pro the extent of the racket drop on the serve. I have been trying to get my racket down lower on the backswing for some time now. My pro said that there were some pros in the past who did not have as great a racket drop as, say Roddick. Apart from biomechanical aspects, such as bone structure, flexibility, etc., the question is how much the additional racket drop actually contributes to serve speed. An example my pro cited was Andre Gomez, who won Roland Garros in 1990 against Agassi. If you watch this link carefully, you will see the extent of the racket drop he does not bend his elbow so much, so that the racket drop is not that pronounced: http://www.youtube.com/watch?v=vyWLtpYsen8 It seems to me, that perhaps, the question might be similar to the various backswing options on, say the forehand. On the forehand, there is the big loopy backswing, and the abbreviated straight back backswing. Similarly, on the serve you have the abbreviated take back versus the big circular backswing. Irrespective of which backswing is chosen on the forehand, a point of consideration is the resulting backdrop position. In men's professional tennis, the take back is in general less than those of the women. Just compare Federer's backpoint to that of Sharapova. And the men certainly hit harder than the women (yes, I know they are stronger...). This seems to be related to the entire forehand swing in modern tennis have more of a linear trajectory and less of a circular trajectory (seen from above). Now, what I wonder is if the same applies to the serve? How much does an extra 6 to 12 inches of racket drop impact the speed of the serve? Gomez was a big server, who did not get a racket drop anywhere close to Roddick. Also, another difference I seem to detect, is that Roddick's ultimate backdrop position is closer to his body, than Gomez's is. Gomez seems to compensate the lesser backdrop extent, by a larger distance of his backdrop from his body. Any opinons?