Thought I'd let you peeps in on this one, although it may not be advised by Rane.

I was having some channel fader problems with bleeding unless my slow-fast was all the way left to slow. My sound guy opened it up and showed that the contacts were bent slightly backwards. He straightened it up and it works perfectly now. I don't know why they bent, but the mixer is at the club, and it takes a massive amount of abuse from drink spilliage since our booth is in the middle of the club. Amazingly, after about 3-4 mixed drinks, it still works flawlessly.