We're running the VRL Hooisers - so I am sure they ar enot recommending that for them- they may for the RS06, etc. Not familiar with those tires.
We're running about 1.4-1.8 neg front and about .7 to 1.1 neg front - depending on whether it's a right hand turn course or a left. I don't think that you can get to -3.0 in a CC with the stock eccentrics or the camber shim kit.
We run about 38+ PSI hot. Staggered starting pressures based on left / right turn abuse and about 3 psi less for the rears. can be roughly 29F and 26R, +/- 1-2 PSI based on which side gets leaned on more.
Others like the pressures much lower - like 32-34 hot.
Your mileage may vary.