That reminds me, the Lock-n-Roll did awesome towing! We took our trailer out as well, dragged it 300 miles each way, 5 miles of rutted out and washboarded roads. I am sold on the new drawbar.
FWIW, I am using the Curt hitch, I welded it to the frame as well as drilled holes through the entire frame and used some long grade 8 bolts. Not going anywhere. I would guess the trailer weighed around 1500lbs or so. VX did well, didn't like steep hills, definitely a 3rd gear gas drinker. I was getting 11-13mpg.
That trailer is awesome, where did you get the nice coiled connections?