[Kevin Sevcik]

I think you're probably spinning your wheel too fast, at the least. If you ever managed to hit your 24000 RPM, the tangential velocity on your wheel would be 571 mph. With an expected maximum frisbee velocity of 285 mph.

You're never going to get a frisbee going that fast. So your wheel will always be slipping and you'll always be applying sliding friction to the frisbee. Sliding friction is only dependent on the compression force, not the speed of the wheel, so spinning your wheel faster isn't gaining you anything.

So back to the actual problem. You haven't mentioned whether this is a linear shooter or a 90 degree wrap shooter. Also, what's the distance between your wall and the rim of your wheel? I think most people are finding something around 10 1/2" to be a good distance there.

If you're running a 10 1/2" compression, then your frisbee is going to bow up a good bit in the middle. I think it'd end up squashed between your two sheets of UHMW if you only have a 3/16" gap. That'd add drag and lower your shooting distances as well.