This tire thread may not have come up with perfect answers to our needs, but does emphasize how one needs to pay attention to them and check them regularly if they aren't as perfect as one would like.
During the summer, we travel frequently from Portland, OR to the WA coast in our 19' Class B rv built around a Ford E250 Econoline and have never have any real driving challenges until a week ago we were coming back from the coast and on this one return trip we had 4 consecutive driving challenges on the road, e.g. a tree branch across the driving lane, one lane closed on a steep uphill with broken cones in the roadway and the lane narrowed by cones inside the lane markers and a bicyclist pulling a trailer on the shoulder, all at the same time.
Fortunately, we had made arrangements to store our Trilly on the coast so we were not pulling the trailer at the time of all this. I certainly would not have been able to easily maneuver around traffic cones into the closed lane on a steep hill like I had to do,like others ahead and behind, if I had been pulling the Trilly. You just never know when your towing vehicle and trailer are going to be challenged to the max. It can pay off to be prepared and have everything in as good shape as possible.
The RV had US made, siped, Michelin XPS RIB, E load tires
on it that had to be special ordered ( BTW, that the local tire store was not familiar with ) and they did their job. Being newbies, we didn't initially realize that the previous owners had the wrong tires
on the rv when we bought it ( D load) until someone advised us to be sure to check the tire spec recommendations inside the driver door which we did and changed the tires
soon afterwards .
We've been lucky and count our blessings!