We need to put some more track time on RHR to determine exact performance of both. What I can say is that you wont be far wrong with m3's.. There is 4 months until the event , 120 days! So plenty of time yet, we will of course keep everyone updated on expected wear rates, performance etc, when we've got proper timing gear etc in place - not to mention finished the track
but from testing so far M3's are fine if you wanted to get a couple in the bag so to speak!