I feel like the RR's "wear" better than the current RA1's but I do think they heat cycle out quicker. I run the RR's for 3 events and the first 2 events always feel good but the 3rd event feels like crap.
I think I had a magical set of RR's back a few years ago because I was able to set the track record at ECR on something around heat cycle 22. Since then the higher heat cycle tires have felt like junk.