Nice track and great driving ! I wonder what makes the biggest difference between the slicks and the RE71Rs, in terms of lap times (3 seconds on a 2 minute lap in this case) : The sticky compound? or the fact that you lose about 7 lbs on rotational mass on each corner compared to OEM setup?
When I had the Trofeo Rs I could definitely tell the car was accelerating a lot faster than the OEM and NT01s on straightaways b/c of the 4-5 lbs weight difference of the tires (305 RE71Rs vs 325/305 NT01s and even more with OEM wheels and tires). Shorter gears with the 18 or 19" wheels also help.
I am also going back to Ridge this Sunday and will have a chance to test the adjusted camber this time, yay!