Maybe a finger.5 in the rear? It's an issue of width and offset as the rubber rides out far enough past the lip that it rubs on the inner pillar (right on the door seam, run your hand in there you will know what I am talking about) that can't be rolled back. With the extra inch provided by the lower sidewalls the camber reaches critical mass and the wheels pull in big giving you plenty of room for tuck. Also - an additional point of reference on my fronts, I have 10.5's and the stretch on the rubber minimizes the bulge so no rub. In fact I am running a 5mm spacer on the front, I tried a 10 and it was juts a hair too much much. I'd love to get under there and beat the hell out of the well so it fits with the 10mm as it looked so perfect......
It is at the point a spacer could be added to the rear, I have gone back and forth whether to spend the money on 5mm spacers but for $450.00 I have worked it out with a speed shop that will use bolts and plates from a G35 and G37 to make it camber adjustable and then I can dial it in to where it just taps out (and push it back closer to spec)
I like the rubber configuration on this, not too much rubber, not too small so that it looks goofy, and just enough for comfort (the CO's help). Personally I thought the OEM rubber sidewall looked a bit too massive but some prefer more meat. No real good shots of my ride, never taken many photos but here you go - Dirty as ever (I wish my wife was this dirty =))