Winter DE Tire Question

[RandallNeighbour]

Hey there boys and girls, I need some advice. My first DE is tomorrow morning and I am excited!

However, it's going to be cold (well, col for this part of the world!) at the track this weekend with lows in the high 30's in the mornings. Then it warms up to the 60's during the day.

I have a set of track rims clad with a set of very low mileage Sumitomos HRTZII's.

I also have a set of street rims with Michelin PS2's with less tread on them, but still enough for the DE for sure.

I originally put the track rims on the car to save the expensive rubber, but I am concerned with cool weather grip and the fact that the track rims provide some vibration at 80 mph and cannot be balanced to remove it.

Does anyone know if the Michelins are better in cool weather compared to the Sumi tires? If price is any indication, they're probably better, but I need some outside thinking to help me make this decision.