This is a question that has been bugging me for a while. I'll try to be as clear as possible. The ideal form for a flat powerful serve requires the player to harness her body so as to generate maximum racquet head speed, using the kinetic chain. At the moment of contact, all the limbs have acquired full extension (with the possible exception of the wrist which may be snapped forward) and there is something aesthetically balanced about the final form. It is a visual expression of the release of stored power and it is hard to imagine how to improve upon this form. What interests me is that the form that produces the maximum power also produces the most accurate serve! I'm talking about accuracy along the vertical axis (one can simply turn one's body to the left or to the right before serving to adjust horizontal aim). Now is this a coincidence? My understanding is that for a flat powerful serve there is only about a foot or so margin of error over the net above which the ball will go long. Did people design the dimensions of the court/net with the ideal serving form in mind? Did the dimensions of the court evolve once the form began to become refined? Or is there something else to this story. Put another way, suppose now that the dimensions of the court have changed so that the service box is closer or farther away from the server. How would someone adjust their form in order to still remain accurate and powerful? Does it all come down to how much one snaps their wrist (wrist flexion)?