I still don't understand the matched tire crap. I do match tires when shit happens but if one tire has lost 1/8" of tread on wheels that are 5' apart, we are talking about the axle (and tires) being 0.119 degrees out of level.
Or think of a tire that is 8" wide. We are talking about the left/right edge of the tire being off by 0.0166".
Perfect? no. Signficant? I don't think so.
It's not about sitting off-level, it's about spinning the differential all the time because of a rotational speed difference.
Question: what qualifies you to make a judgement call as to what is significant or not when it comes to this subject?