CrashFL - you have had a taste of grip - there is no way you're going to be okay with going backwards now
The heat was a bit rough this weekend - almost 100* for his last two track days. Think the heat accelerated the wear a bit this time, plus he is fast.
The RT660 sound promising, hopefully they live up to the hype. A0052 wear too fast. The GY Supercar's sound like a good one to try. Although they are slower than RE71s - I love NT01's for grinding out laps (wear great and are extremely consistent throughout their lifespan) - but not so fun in the wet. To me cup2's are an option if you are hard to fit.
Unfortunately this level of tire is a lot about finding which compromise works best for you. Starting to get into the tradeoff of wear for speed. Also if you only take one set of tires to the track want to make sure they wet friendly imo. All this with the size constraints of the F87 platform can be a bit of a headache.