I ran my car yesterday on the same track and things were very different. The first time I ran it the track was muddy, this time it was dry and very hard (still bumpy though). I would have liked to try my knuckle tires but did not have them with me. I foudn a few things though. I believe the rear shocks need lighter oil as the back jumps around a bit in the rough stuff. I looked at my tires after the run and noticed the insides were wearing more than the outsides. I borrowed a camber gauge and found my back tires had 2 on one side and 3 on the other (negative) and the fronts had 2 1/2 on one side and 4 1/2 on the other [X(]. I have since set them all to 2. My car also seams to be very tail happy under power I was thinking of changing the diff oil (5K,7K,1K at the moment) but am not sure. Any suggestions?