what did you end up finding out about the tires for towing? I just bought a 2020 with the 20" dueler h/t and wondering if they will work for our 22' tt. I too want them to stay comfy when not towing, but while towing not feel the suck and spit out from semis.I agree bpwj76. I've got the 3.92 rear axle because I'm in the mountains. I'll air those tires up to 44 psi when we go camping again, and see how it does before I replace the tires with XL's. I didn't find anything above the XL's with a load index of 117 - 51 psi max in that size tire and I don't want to go to a different size. I definitely like the ride comfort.