I decided to go with the Goodyears instead. It was a difficult choice because they are twice the cost. From what I've read and heard the 81's are very soft and don't wear well especially on a heavy vehicle. Sounds like they start out as an excellent tire. Quiet, great on and off-road, and decent rolling resistance. It's just as they get older they go out of round and start cupping etc. I even read somewhere that they only lasted 20k miles on a heavy truck. Sorry, don't mean to rain on your parade. What I say certainly isn't gospel. This is just what I've picked up after the last couple months of starting at the monitor. I'd love to hear some real world use comments. I'll know more about the Goodyears at the end of summer. Good luck and keep us posted.