Looking to take a bit more steering out of the car. By adding 1mm shim to the front of the rear suspension mount have a large overall effect (anti-squat) on the steering or does it take away too much rear grip (roll) out of the car.

Thinking that running anti-squate is more perfered over running anti-dive in the front as I have not seen many that use anti-dive in the front as part of there setups.