Here is a list of specs for FormulaOne tint:
Here is a list of specs for 3M tint:
These are just 2 examples.
I,Personally, have 20% 3M Color stable all the way around, with 70% 3M crystalline on the windshield... Everyone has their opinion on which brand to use, but for you, I would look for a good heat rejection % if that is your main priority, then choose a darkness.
and yes, it is Clemson. I graduated from there.