I've never run them on anything on the street, but I've had friends buy them, and love them. They ran them on their plow trucks with zero problems. They just laugh at me when I pay $100+ for Goodyears.
I have run them on stock cars (they were the spec tire) and never had any problems seperating. Just look at the brand of tires that the re-treads are on...like BFG's and the such...for good sidewalls.