He did mention he only gets that mileage drafting a semi, which still seems to be a stretch, but whatever.
Why do so many posters get so hyper at the idea of 10% tongue weight? Lots of folks saying "that's unsafe"? 10% is a nice balance of rear axle loading and stability in my experience, no lower though. I've been towing for 15 years, and from the reading I've done, 10-12% is perfect. (only if it tows well though).
As for having to crank up the friction to keep a lid on sway, that's just kooky talk.
And for the OP, there's a reason Toyota gives those ratings, and even if you think it's underated, that's just a guess. There are HD half tons that will handle that trailer no problem, but Toyota doesn't offer one. My experience with my last Toyota truck, was I killed 3 sets of rear gears running it hard at GVWR, so Toyota's are not inherently any tougher than American iron.
