Originally Posted by
notsogoodfeline
they're a set of his shaved toyos. Maybe just race tires? I dunno really. I just know they aren't supposed to chunk off as badly as the street tires will.
well since I haven't done a road course yet I can't confirm nor deny the multiplied amounts of fun it is over a quarter mile

If your alignment is decent, your car handles ok, and you don't overdrive the car into or out of the corners, you shouldn't have any tire chunking problems.
Also unless Mike is your instructor, you may have trouble finding an instructor who will get in your car if those tires are on it (street tires are strongly suggested in HPDE1, in fact some groups and instructors flat-out require 'em.)
Shaved Toyo race tires don't communicate like street tires, so you'll be missing some valuable parts of the learning experience, i.e. how to hear and feel what the tires are doing long before they let go.
Beyond that... you'll learn better/faster, and have more fun sliding around, on street tires.
Think of the journey (i.e. learning to go fast) instead of just the destination (going fast)...
IMHO YMMV ETC,
Jon