I have one question for you. How the hell did you manage to keep left rear from overheating in the Audi? I did try softs on practice server, but even with rear wing at 6 I could not keep it under 95C and couldn't post time better than what I could do on mediums.
I've been running the Audi elsewhere for a bit now. Rear tire heat build is just a thing it does. Even on meds at Mosport for example exiting T3 was getting temps in the 110c range. That's with 2x wear and 34c track temps. You just have to deal with it. I haven't found a way to dial it out without slowing down. Being able to run softs on the R8 is limited to certain tracks and certain temp ranges only.