What Center Diff works w/ plastic spurs?

[MetalMan]

I have a Hyper 8 center diff running the Kyosho 46t plastic spur. I forget what I did exactly, but I think I did something with the shims on the smaller gears in the diff.
There's another thread around here with the same topic.

[jhautz]

I have already taken out all of the small shims behind the small gears also. Still Binds. I didn't really want to take those out because the small shims behind the small gears are the only thing keeping the gears from rubbing directly on the plastic housing. I did already just to try it and see if it made a diference.

Anyway... Still binding.

I can't seem to turn up the other thread through the search tool. Can anyone point me to it?