If you go to a truck scale, you can get the loaded weights for all axles including trailer, which will help you determine if you have proper weight distribution. But it will also help you determine the best air pressure for tires at each axle based on the tire manufacturers recommended psi based on load.
This is the strangest life I've ever known - J. Morrison
2015 Airstream International Serenity 27FB with ProPride
2011 Ford F150 Lariat Ecoboost V6 Turbo Gasser