Chiming in as I experimented with a lot of alignment set ups. Currently running 2 degrees of camber front and rear. I get pretty even wear throughout the life of the tires. As little toe in as possible while still being with bmw recommended specs on both front and rear.
I tried 0 toe up front, car felt nimble but unstable especially over road imperfections at high speed and braking. The compliance of the bushings forces toe out and the car wants to wander.
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