@ fred with the old setup i tried rear camber between -2 and -4.
Rear camber with the extrem short camberlink setup and the deep rollcenter setup was -3.

@bds test with both setups was last year. I cant remeber exactly what was "crappy". But i remember with the extrem short camberlink setup in corner entry the car understeers and in the next moment ( in the moment where the grip on the front weels come back) the car extrem oversteers. The understeer oversteer problem was in tight 180 degree cornes driven complete offpower.