Cool idea but apparently, they haven't been able to get sales to take off as the website says special order only.
Not sure how complicated it is to install but even if it only moves the pivot point near the rear axle (say a foot behind), it should make a huge difference in sway.
Came across the following and can see why it didn't take off. It's a lot more to install than a standard hitch and weighs a whopping 270lb.
http://www.serenitysys.com/rv/technical/hitches/pullrite/pullrite_hitch.html
Now if they could get in with one of the truck manufacturers, so it got designed in as OEM...
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV