We had a moderate temperature day yesterday in Ft MacLeod, AB, at our autocross event on the airstrip. 70-75F showing on the dash. Started cold on 35F, 32R. Hot 36F, 33R. Airstrip was crazy dusty and slippery on the first run (I was third car in the first run group) but grip improved by the second run. I have stock rear koni's and re-valved koni fronts. Car was the most predictable it's been since I started autocrossing it.
I think your tire pressure depends on surface, temperature, and driving style. I prefer running RE-71R's when surface is cold or wet, with moderate daytime heat later on, and BFG's on really hot days (eg. Summer in Fontana), but likely at those pressures I listed above, making adjustments on the day as required. I chalk my sidewalls more often than not.