Sorry Derek, perhaps I incorrectly attributed some of the crapstorm in the other thread to you. My appolgies.
I had actually typed up a longish response, and then clicked out of the page by accident and lost it all.
Shortest version: I have coils, so my ride height is not directly comparable to yours.
Shortish version:
At normal height, I only rubbed under extreme compression, such as in a sand dune, but never on a slow technical trail, and never on the road.
with 40mm soft springs, I rubbed only occasionally, such as when hitting large bumps at speed (including catching a little bit of air of the bump)
with 65mm stiff springs, I don't come anywhere near rubbing
The only place I ever rubbed was just forward of the rear tire, at the 9:00 o'clock or 3:00 o'clock position, depending on the side.
I know several other people with LR3's or RRS's with Nittos and they rub at the same spot on occasion, but I couldn't tell you if that was in normal mode verses access mode or off road mode. They do not appear to rub enough to cause them to switch tires.