I just purchased an Anderson for our 2014 281BHS. The hitch worked fine with the coupler and frame. I think the frame is 6 inches though.
After a few trips out I now have a Blue Ox installed. I think the Anderson has its place but it is not on a trailer of that size or tongue weight.
Sway control is similar between the two but the hookup is much easier with the Blue Ox and the ride is much nicer. Everything felt very rigid with the Anderson and all the trailer bumps and jolts were transferred into the TV with the Anderson.
I would recommend a traditional hitch like the Equalizer, Reese, or Blue Ox......
The Anderson would probably work great on a smaller and lighter trailer and depending on the need for 100% weight restoration vs 50% ect... It does not redistribute enough weight back to the front axle which is ultimately why I wanted to try something else.
Where do you live? I can sell you mine if you really want to try it.
2014 Jayco Swift 281BHS
2015 F250 XLT 4x4 Crew Cab, Short box, 6.2 gas
Solar powered! The trailer not the truck!