Take you coach across a set of scales and after you have the weight set the pressure to the manufacturers recommendation and not to your personal thoughts. What everyone else sets their pressure to may not be the same as what you need to set yours to based on weight. Example, although my Challenger's label stated 110 lbs based on weight Michelin recommended 90 psi. That is what I set the pressure to and had no issues and good wear for over 5 years.
Since we are taking the Accolade on it's shakedown cruise this weekend the first stop tomorrow will be on the CAT scales about 5 miles from the house. Saturday morning after the tires have cooled I will set the pressure based on Michelin's recommendation, which I expect it to be considerably less than the 110 psi the dealer put in at delivery.
Again, a suggestion.
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk TOAD