You said to increase the rear tire pressure to reduce understeer...and I'd said just the opposite. I wonder if AutoX is that different from 'regular' driving...because in DD, increasing the front tire pressure relative to the rear increases oversteer. For the same degree of turn in the tires, with more air, the tire is bigger, and thus more turning is done.
Are the physics in AutoX that different? I'm confused...or you just made a typo.