I'm not sure if this belongs here or in the racket section, but here's the question. It seems to me that the heavier a racket is, the slower it is moving at contact. If i remember correctly, Sampras used a heavy racket and a ton of lead tape. However, he obviously had a huge serve with a ton of spin, which of course means he produced tons of racket head speed. So what effect would changing the weight of his racket have on his serve? Would a little less lead have produced more spin due to the increased head speed, or would the reduction in mass mean a less efficient transfer of energy and produce less spin? I'm tried to add some teeth to my serve (in terms of spin). I feel like i produce a fair amount of head speed, but i don't really get the bite on the ball i want. I can serve with pace, and i can serve with spin, but the spin just doesn't feel like its moving the ball as much as i want it to. Anyway, i'm currently using a stock racket (head prestige flexpoint). i thought of trying some tape, but it seems counter-intuitive if its going to slow my racket down and produce less spin. Can anyone shed some light on this?