NEVER on a street car should one desire the slightest iota of positive camber. There are far more effective ways to induce understeer that don't destroy tires. I just wonder why they make the arms this way? Unless it's for the roundy round crowd who'd want some on the inner tire?
I was thinking about the roundy rounds when I mentioned it. I didn't mean you need positive camber on the streets. I should have clarified. Plus, some cars frames sag where you may need a bit more positive adjustability just to keep it in negative specs, if that makes any sense.
However, there are some specs of zero camber, +/- 1/2 degree, out there that with the tolerance actually allowed a teeny amount of positive camber for the left front. 200 years ago, when I was in alignment school, we did several hands-on alignments on various cars in the school's fleet for practical tests and I got one of them. I can't recall off hand which car that was on, or could have been a truck, but that was years ago. I found it kind of weird. There are some old-school alignment shops that insist on fudging a bit of positive camber on the left front anyway even if the specs didn't allow it due to the crowning of the roads, but I personally don't subscribe to it. Those guys are likely dead now. The new computer graphics shows if it's dead nuts or not.