Jeff C is correct about the Reactive caster. Depending on which way the upper eccentric mounts are on the car you can have from 2-6 degrees caster change (taking caster out as the suspension is compressed). So if you run 10 degrees caster with 4 degree reactive caster you have 10 degrees at normal ride height and on acceleration. On corner entry or braking it takes 4 degrees of caster out to make the car turn in really hard.
Glad the tips worked RCfiend. You'll love the car.
Craig the C hub is an option part. If you think it makes the car expensive go and price a XXX-s with Graphite kit, threaded shocks, short shock shafts, roll center mounts, 64 ptich gear adapter, ball bearing steering, all the different caster blocks, all rear hub carrieres, alumn cvds, and light outdrives and tell me how expensive the Xray still is. You get alot more for your money with the xray.
eric a