Two questions>
One: So the rear tires on a Crossfire do not get much mileage even if things are adjusted correctly?

Two: I got the camber kits and the rear tire cambers are now perfect. (I was wearing the inside of the tires out every 10,000 miles). But I still have a toe problem. One of the arms on the right rear cannot be adjusted. Someone along the way screwed up the bolt, and stripped the head. The only way to get it out would be to cut it off. The alignment guys set all the tire toes to match the right rear. Drives perfect, but what affect may it have on tire wear on the tires, knowing the camber is perfect?