I have Hoosier R35's on my car for 9 sesssions. I drove the sh*t out of the car and they still have a bunch of meat on them and as of my last session the grip seemed fine (obviously not as good as new but not bad at all).
There is a one day race at PBIR next weekend. I'm not trying to set the track on fire, I just need the seat time right now. So I was thinking to just use them and change them for the next full weekend (which I'm not sure when will be).
So my question is how much is enough? I know some people change them every day but realistically how much time (sessions/heat cycles etc) can you use them and be safe and competitive? Everyone is different on this topic so I'm curious to hear what people think that point is when new tires are needed.