More camber = more tyre wear surely, and less tyre life.
The more negative camber you are running the faster the inside of the tyres will wear especially in road use.
Would it be fair to say that toe in/out causes more wear?
I'm running a good bit of neg camber up front but i've corrected the toe and the tyres seem to be wearing ok.
I haven't put many miles on them yet though so it's kinda hard to tell.