Does it sound like something I just made up? Or do you think it may well be something you have never heard about before?
Go search your vast bank of knowledge again, maybe you just missed it.
Answer to the question...all production cars have a bias, whether it's done via springs or other methods (it's so the car can track correctly on cambered roads-thats all roads) unless they have after market suspension.
I really am getting pissed dispensing sound advice, then having to explain it to the third degree.
I think I'll quit..
To the guy with the problem, springs will wear on one side of the car more than the other because it's under more load due to the camber built into roads. So if it's only a couple of mm it's normal.