I don't think Costello is completely wrong, ie. with regards to really long items. You can only have so much of the item sticking out beyond the end of the trailer before it becomes problematic. The longest B@W is going to work better for certain items, although I've never had the need to carry anything longer than six or seven feet long, so it's not really an issue for me.

I've flipped my narrow B@W a couple times. Does the stability of the HPM have as much to do with the hitch location as with the width? After all, the smaller model is narrower than a wide B@W. One thing about the B@W is it doesn't take you down when it flips. If you made a sharp turn fast enough to flip the HPM, it could result in some road rash, but from what you're telling us, this doesn't happen. It sounds like you've put it through it's paces so I'll take your word on that.

Do you also have experience with the smaller model? It's not really fair to compare the bigger, wider HPM to a narrow B@W. A B@W model 96wide is less expensive than the large HPM, and has a significantly larger platform.

The HPM looks like it will handle items wider than the bed better than a B@W. Much easier to balance stuff on those rails vs, on the B@W's fenders I would guess. I like the short rail on my trailer, I can carry a lot of stuff without strapping it down, because that rail keeps it from sliding off. Stuff that would slide into the wheels or off the back of a HPM, although a short guard rail could be improvised fairly easily, I suppose.

Both brands seem kind of overpriced yet totally worth the money, if that makes any sense. I carry freight 100%. If you want me to carry your envelope, you need to put it in a box first, haha. Still feel like the narrow B@W fits my needs better than the HPM, I'm rarely dispatched a job bigger than 200lbs. and I like that it's no wider than my handlebars, but overall, the HPM looks like a better trailer.