I don't use a distribution hitch, but I do use a Weigh Safe hitch for hauling my 14K dump trailer that I use for firewood. The gauge tells you the tongue weight, so you can keep the load properly distributed. Weigh Safe SWS6-2 - Weigh Safe Trailer Hitch Adjustable Ball Mount | AutoAnythingâ„¢
Not sure who did the demo? I'm sure that the recommended way but I have seen lots of people back up with bars on. Me personally everytime I use the bars I probably back up. Sometimes just 2000 pounds on the car hauler sometimes there is 4000#s on it? Maybe I'm lucky and never bent anything only way I could see it bending is if you backed it into something and maybe it bounced the trailer off to the side? The bars don't push the trailer the ball is haw it's really hooked? Not saying it's wrong advice just that my real world experience I guess I have been lucky and not bent them.
This was a specific brand there were no chains on it at all...I think it was Blue Ox or something like that. I've backed my old camper 100's of times with the bars on
If it didn't have chains anywhere wouldn't they bend when you turned? There has to be some flex for you to do anything beyond go straight? But again the whole thing is hard for me to visualize the forces and what they do in my head and I'm pretty good at that stuff. I do know how they work and what they do but took me awhile to work through the for es in my head to understand it.
Seems easier to me than some of the hitches with the solid bars/arms... Quieter than the other hitches when pulling too.