That angle is really shallow, the newer ones are a bit bigger because the space between the trackball and the screen is more. isugoat, maybe just put a trackball on a desk, set upa piece of cardboard or something abotu 9" away at an angle you think would be comfortable to watch, then slam the trackball and see how far your hand goes. I might use Lexan to protect my tv as I remember watching some people play golden tee fore and they still hit the screen with the palm of their hand especially if they've had a good wind up.