This is an old bread but I'm throwing my 2cents at it. Personally I would not waste a dime on those, yes they are good but much better can be had for much less.....17.5's come in way higher load ratings, used on real HD equipment trailers/ semi trailers (ie not the trailers us amateurs call HD) and truck service shops usually stock them for when you have a blow at 2am. Lost 2 Goodyear Gs last weekend within 300 miles.
For smaller tires I've had awesome success with Maxis trailer tires, wldnt buy anything else. Been using a 15" load range E on my toy hauler and probably 10k miles on them, when they're done I'm going to 17.5s.