I have recently gone from a fifth wheel to a class A so using a tow dolly is a new adventure. Do you tighten down the wheel straps tight or do you just snug them down? Do you leave the steering wheel ...
Try to center front wheels on platform when you load. I re-tighten after a few hundred yards to a mile or so (whatever works in the situation). When I re-tighten, it is never more than one click per side... alot of the time it will be one click on one side. My steering I guess would be locked. We load and just turn car (prius) off. We have the Karkaddy 3 by Demco.