It was only in the early 70s that the rules were changed for serving such that a player no longer had to keep a foot on the ground during the service motion, as well as not break the plane of the baseline. While it didn't have much impact right away, that change, coupled with the advent of oversized frames has caused profound changes in the a game that was basically the same since the early 1920s. What rules and standards would you like to see in tennis, and don't limit yourself to returning to "the way it was", talk about new and uncharted changes that might make the sport better. Of course, my flag has always been a return to the standard size frame (make it out of jello if you like, but make it standard), however, I'd like to hear and discuss your ideas. Go ahead- open my mind...