Having more varsity spots kills the quality of the sport, and that like of quality hurts tennis' reputation amongst other athletes.
Preparing for a varsity sport doesn't start in high school. It starts in elementary school.
It is hard enough to have 6 good players, and 12 is impossible unless you are a private school and recruiting the entire city.
If more players was the answer than golf would have bigger teams instead of the qualitative number they currently have-5. Golf knows how to market itself! Every golfer on varsity can flat out play. Varsity tennis?...not so much!
Southern California Tennis Academy