So... I feel dumb asking, but I'm really just trying to determine what to do. Last track event was really cold (~40F). First session I started at 30psi and it got up to 39psi. I kept bleeding them down throughout the day to try and keep them at around 34psi. Evidently, I should have been targeting closer to 36psi with some slower warm up laps. Also, I have -2.7° camber.
My front right Michelin PSS has plenty of tread except on the outside shoulder. Does this need replaced? I'm thinking yes.
According to Tire Rack (
https://www.tirerack.com/tires/tiret...jsp?techid=161)
> Once the lateral grooves in the shoulder start to disappear, the end is near - it's time to replace your tires.
Next track weekend is at Summit Point Shenandoah. I think I'm going to increase camber to -3.0° and toe-out to 0.2° (from -2.7° and 0.1°). And go with PS4S upfront (rear PSS are still in great condition).
Lessons learned
1. Pressure is important for more than just for grip.
2. Rotate tires in middle of track weekend.