[Veselin Kolev]

For those of you who are using rollers to shoot your ball, how much compression are you using on the ball to get more traction? For example, the prototype I made this weekend had a roller and a plate, with a 6" gap between them, so that is a 1" compression on the ball.

Also, I have noticed that the faster you spin the wheel, the less compression you need. Hence, along with compression, what is the surface speed of the rollers you use?

Thanks.