I would still like to hear Roberts answer to my questions above.
For the sake of argument, I am going to agree with Richie. My reasoning (and this info from my handling books for pavement cars):
Lets say the car is loose at turn entry. What are the causes and what changes can you make to correct it?
1) There is too much rear brake bias - if oversteer occurs while braking into the turn. To fix, reduce rear brake bias.
2) Too much tire stagger. Reduce tire stagger.
3) Rear roll center may be too high. Lower rear roll center.
4) Right front spring rate too soft.
5) Right rear spring too stiff.
6) Add more cross weight to tighten up the chassis.
7) Right rear tire over inflated.
Rear roll steer present in the chassis.
Assuming the that the race car comes to the track with the chassis basically set up properly (front end alignment correct, spring rates correct, weight distribution in the correct range), then there are 5 basic adjustments that can be made at the track to tune the chassis:
1) Tire Pressure
2) Stagger
3) Cross Weight
4) Rear Roll Center Height
5) Front to Rear Brake Proportioning.
Steve