I have the same issue with my car, slight positive camber when empty. I am sure if I could afford to actually
fill my fuel tank all the way up

, the added weight might help. When I throw a couple of children in the back seat it is much less pronounced, if not eliminated entirely.The tires are wearing evenly, and it seems to handle fine. But I will say it is one of those things that I can't help noticing everytime I look at my car.