A couple of more questions/comments.
Where is the thread/information for the "Great Tire Experiment"? I couldn't find it doing a search.
Wayne, Regarding the WDH; Are you saying that in affect the coupling of the two chasis' together through the WDH can actually transfer weight back to the camper frame from the truck? If so, does this happen in a steady state or just when you hit a bump or uneven surface?
I'm kind of leaning toward the load E Maxxis. They are hard to find though. Maybe that's why there seem to be so few problems with them.
And oh my is this a big subject on every trailer forum you research apparently with no "clear" solution. egads!