TCS only allows Tamiya tires to race but you can install aftermarket inserts for a change. Depending what kind of condition you guys are running at Wisconsin, I would probably recommend a soft/soft or soft medium tire/insert setup. I bet the track is going to be cold even if the sun decided to show up in the middle of afternoon. I used to run my TA04 with -5 from cambers and stock toe setup. It was hooking up at the local makeup shift track at my LHS back in bay area and at nite time it was always cold and misty (yeah...pretty wet indeed) but it hookedup pretty well..till I switch the camber back to 0 (bad idea). That's all