The chi-town race is NOT a roar race.

You will want to have THREE sets of tires.

Full slicks
Ghost pins
and something with super low trim lines (pressure points)

There are a few methods to get the tread height down.

Run them in the street
Run them over a coarse sand paper
dremel (my method)

If you're running an SC10 on hex and are in desperate need of tires, come see me. I'll have a few extra sets