Re: Curved shooter mysterious hook.
 

The real question is, is it reliably hooking in one direction? If it is, do you think that you can harness that hook to get around opposing defenders?

If it's doing something reliably that isn't what you expect, you could tweak it to make it work right, or you could simply adopt that and move in another direction.

Re: Curved shooter mysterious hook.
 

We noticed the frisbee likes to ride up on the wall or the wheel. Added guides to both, minimized the aforementioned problem.

For you, try angling the wheel slightly so that the frisbee does not want to escape upwards out of the shooter.