Originally Posted by mightyrick
It makes me feel like an idiot to hear you guys are able to tell yourself to contact a couple inches higher or lower on the stringbed, or adjust the face five degrees. Man, I don't know how you guys are able to think and position and detect where you hit so precisely when things move so quickly.
You're obviously not a very good tennis player if you can't see whether you hit the ball an inch below or above the center line.
As I suggested, the only way I can tell is by using high speed video. And even with the setup, I don't video many of my practices. Mostly I just use the video when I'm working on something new or I have someone to shoot for me. At 240 frames a second, that video card gets filled up fast.