It would help if you told us how many miles you've done on your tyres!
Even at max wear setting (aka motorway) you will see excessive inner shoulder wear as the GTR has a pronounced negative camber even at this setting.
I've had my camber at all 3 official settings, motorway thru to track, and cant say I noticed much difference between them on track or road.
What I have noticed is on motorway, my current set of bridgestones have done 9k, 2 track days, CATDT at Millbrook, and some decent summertime road fun, and still have 5mm left on the rears, fronts around 4mm.
I'd be lying if I said it was all down to the camber, or just the tyres, but it has to be a combo of both.
Given my previous Dunlops lasted only 6k with just one extra track day (in the wet too) I'd be happy to get 9-10k out of the bridgies given they're half teh price of the dunlops.
GTC 76mm intakes+K&N filters
ID 1000cc injectors
Ben@GTC custom tune, 611bhp, 600lbsft
Russ Fellows zorst..
PF rotors, RS29 pads
SSP trans cooler
Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you.