Anyways. They had so many sets of hard tires & soft tires. (two different types anyways) They were allowed to use during the race. I thought it was interesting, because the teams would put on the different sets at different times, depending on their stratergy.
I think that would be a good idea in cup. Also would add to the startergy of the race. Say if you were allowed to use 3 sets of softer (faster tires) during a race.
So if during green flag stops you get lapped put on the faster tire in hopes of gaining your lap back, & always save a set for late race cautions & such. I could totally get into this idea. Someone in the back might try their tire earlier than other trying to gain track position & such. it would be a major headache for GoodYear probably, but hey! I cant help everybody LOL.