I went to another Clemson autocross a couple weekends ago and did better than expected. The new Nankang AR-1 tires did really well even with the cooler temps. I ended up placing fifth overall out of 46 cars, and only 8 tenths behind second place. First was a modified Z06 and with an experienced driver and he was way ahead of anyone else. Second place was a supercharged Miata setup for autocross and was very well driven. I'm usually a 2-3 seconds behind the guy with the Miata so the new tires definitely helped.
Click the link for full resoultion results.
https://imgur.com/mNRJE9q