And retrac swoops in with an opinion!
Run whatever you have until you learn the car, how to drive it smoothly and don't out drive the tires. You will burn through tires faster than you can imagine until you get those skills down, no sense doing it to an expensive set when you can learn on cheap ones. Learning to drive well on less... advantaged tires is good for your skills once you slap great tires on.
I saw mike get a lot of fast racing out of a set, and I saw dad go through a set of fronts in about 6 or 7 race days, that adds up fast!