I personally wouldn't want to use the Kumhos for continued track laps ...well not the Supersofts anyway
They dont make them in my size. I know hill climbers that have moved away from the dunlops to the khumo.
I understand why ......you can't get enough heat into DZ03Gs & they don't make soft compound anymore ...Kumho Supersofts grip from the start ....
I can't get Slicks in equiv size max 205/50/16s