Apparently I am crazy, but even with the worn brakes I couldn't resist to do a few laps on Nürburgring Grand Prix circuit a few days ago. They made a lot of rumbling noise but since the brakes were working, I thought "why not?". 2 stints of 5 laps each did wonders in cleaning up the rotors.
I braked early on the fast straights and every time someone was in front of me. It would have been embarrassing to shoot off the track or even worse rear-ending someone due to worn brakes.
Since I had been driving there shortly before going on the track, I was unsure how much air to let out, I only lowered it to 2.1 bar (30 psi). Probably it wasn't enough since the AD08R were screaming around the corners. Still lateral grip peaked at 1.3G in the cambered curves.
This time I felt well prepare and it was a lot of fun, as opposed to last time where I didn't know to turn left or right. Towards the end I felt really comfortable and started to see where I can be faster next time I'm there.
Regarding brakes, I finally made up my mind and ordered the Carbotech XP10 front and rear. I am really excited about getting those now!
[ame="https://www.youtube.com/watch?v=2ynalp17k94"]Getting a grip on Nürburgring GP circuit (and GT86 vs. GT86) - YouTube[/ame]