I usually run Soft tires as opposed to Super Soft. Because when they are warmed up there's no real differance of the two when.
I make it a priority to divide the number of laps by a set number (depending on how large the course is) while I'm racing, giving me an even amout of laps per set of tires, using the tires to their maximum before they go red, even orangish somtimes.
Also a good idea is to set Super Softs in the front while putting Mediums or Softs in the back, allowing the back tires to spin if you can't stop them from doing so. By the time you do a couple laps both sets of tires should be at about the same spot. But this only applies to RWD or Mid Cars. Whatever, anyone tell me if this doesn't or does work. I'm still working these things out.