[robz71lm7]

The weather looks great.
http://www.weather.com/activities/other/ot...fcst_undeclared

I'm taking an evo school tomorrow. I can use either 275/40/17 V710's or 245/50/16 hard as a rock sucky Dayton Daytona street tires.

I don't care about the tire wear.

[sgarnett]

Rob, most of my Evolution seat time has been in extremely cold and/or wet conditions.

I'd go for the race tires. Even on wet pavement, they'll grip surprisingly well as long as you are very smooth, they just won't be very forgiving (actually good conditions for learning IMHO). If it's raining hard enough to create a lot of standing water, there will probably also be lightning bringing things to a halt, and the steady stream of cars helps disperse the puddles quickly.

You are mostly hot-lapping, so getting the tires warm isn't as big a problem as it would normally be. Just remember that on the first run of each session, the tire will be cold again.

OTOH, it probably won't rain all day, and it would suck to be on street tires when the sun comes out.