It's almost unimaginable to me that you could have too much oversteer autocrossing. In stock form on Azenis I can hardly get the car to rotate. Even the modded cars with significantly higher spring rates in rear + Mugen rear sway bars don't swap ends on pressures like yours. They actually take camber out of the rear (from lowering) to get the car to turn more.
It might be worth asking what your suspension set up is? Shocks, spring rates, sway bars how much camber you're running...etc. That may help answer this question.
Originally Posted by Chris N
[quote:e641cfa1b8="dawhiteboy"]step on the gas pedal

If you want less oversteer, get on the gas and take air out of the rear tires if you are really loose like that french whore you so eloquently described. =)
You are supposed to flat foot every autox course anyways!! :P[/quote:e641cfa1b8]