Toe out causes more wear on inside than any amount of camber from what I've read. I think there is Dynamic loading during cornering and stoppingI have apparently toes the tire outward logically braking would do the most of that. I think the majority of inside edge tire wear an X5 comes from the Rose joint being worn or an upper control arm being worn and The wheel dynamically toeing outward during braking. I have helped people with E53 that shredded they’re inside edge in a matter of a month and it was the upper control arm.

My wife and my X5 both have camber that is close to 2° And the tire wear is very even edge to edge. I do check periodically to make sure that the toe angle is approximately 0.15° on the front and the back axle.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)