I do have a fair bit of inside tire wear in the rears, which is also to be expected with the relatively aggressive negative camber. I've got prolly 10k miles on the Advan Neovas and they have a ton of life left in them so the wear isn't that bad. I think I will have my tires rotated inside out soon though.
I may take a little camber out of the rears, though I will have to raise the car a bit to do so. My current ride height is 2.5" below stock, so I have a little room to play with without getting back to the monster truck looks of stock.