tactics and strategies, movement, shots and ball speeds can all be fine—tuned, and you can get as close to winning as possible. and someone who certainly knows a thing or two about winning is billiejean king. with 39 grand slam titles, she is a legend of the game. how much of a better player do you think you may been if you'd had access to this? so much better. i was very adaptable and i could learn quickly if someone showed me something, and i loved challenges. so adaptable, you can set it up anywhere you want. you can find out about your rpms, how much spin on the ball, you can find out trajectory, you can find out percentage of first and second serves. what do you say to critics that might say, well, they want to keep tennis a bit more traditional, and this is almost cheating? not happening. i think it will hurt our sport if we went that way. whether the big tournaments will arrive at the same conclusion and adapt the tech remains to be seen.