I'll have to see how my IROKs do when I finally get them mounted, after my axle swap. I look forward to seeing how well they balance, ride, and if they flat spot badly.
My buddy has had three sets of Swampers on his truck - 31 or 32" SSRs, 35x16" Boggers, and 38x12.5" TSLs - and both the Boggers and the TSLs would flat spot overnight. They seemed to balance alright, and the TSLs were surprisingly quiet, but both wore like erasers on the street, but that's just the way it is.
I would like to see Interco give me new tires if my IROKs won't balance. I highly doubt they would remotely consider shipping 4 new 36" IROKs to Alaska at their expense. It would be very, very cool of them, but I don't think they would do that.