Good info, thanks for the link. I suppose I should shop around for a good pyro so that I can dial in my pressure and camber exactly.
Just for clarification: Wouldn't less tire pressure typically increase traction? (Assuming that it's within range for the tire) It seems like less pressure in the front and/or more pressure in the rear would magnify over steer, not decrease it.
Either way I will spend some time adjusting pressure and testing this at the track. I found that the RE-11's worked best for me at 33psi hot on all corners. With the cups I'll take this info as a starting point and try to fine tune it from there.