Your camber link position will create more or less "camber gain" depending on the angle and length of the link. If the wheels are turned in, the caster blocks will also create more camber. I haven't run asphalt rubber, but I always set my foam tire camber to wear the tires flat on all four corners. We're running rubber on carpet now and I still try to check for the wear pattern. If the tires are coning, you're not getting the full use of the contact patch.