3 days for tires? Yikes. And you guys run higher negative camber too. That's really surprising to me. What do your tire temperatures/pressures get to? I wonder if the tires get too hot and shred themselves too quickly?
I have only factory camber, and 3 days on my Cup2s, which are notorious for fast wear also, but I expect to get at least 2 or 3 more days out of them. This is what they look like after 3 days. Plenty of thread but beat up shoulders. But still no cords! I try to pay attention to temps and pressures as I run, and do cooldowns when I see temps >90C or pressures over 36psi.