I always inflated to five pounds less than max at home on my TT and went from WI to AK to MA, Ga to FL with no problems.
That was on Maxxis tires.
Almost never checked the tires on the road. If I did they were not losing air, like going flat. One can see something is not right. Then, DUH, check it out!
Many moons ago if I recall right it was recommended five pounds less than max. Now that does go back many years now that I think about it. Different time and different thing happening with TT tires.
2011 Four Winds Chateau 28A
2012 Honda CRV