as an endurance racer my go to endurance 200 treadware tire is the
hankook rs4, it's just the best as lasting and taking abuse / heat. over the last year or so we have been running 595rr because they cost about half as much and can offer similar lap times. I also treat them as more disposable at this pricing level. pressure is a factor, but heat matters more when tracking 200 treadware tires - you have to feel the tire and know when you're over cooking it and let it come back and grip again. we can get 8-16 hours out of these tires depending on track surface.
so what does this mean to the OP? you should be on the RR and not the R. but really, for trackday I'd spend more and get more because your use case is different. I've run 615 in the past, never liked it much. re71 is a great tire but doesn't last as well as rs4 and others.