Fear not Dale.

Without knowing the weights you are only guessing at the correct tire pressures.

I weighed mine as soon as we put all of our stuff in it and filled the water supply and the fuel. I did it at a Pilot and as luck would have it every axle hit a different scale so I did not even have to do the math.

I weighed the other coach at a steel scrap yard and had to weigh the entire coach, and then we jockeyed the bus around to get the axle weights. As an alternative to a truck stop scale you can get weighed at a scrap yard, a feed mill, or any other location that has in ground scales.