"I run mine based on recommended tire pressure on the tires themselves"
No such thing! The sidewall gives "MAX" psi for the "MAX" load the tire can carry. The weight/inflation chart will tell what you should be running based on actual load the tire is carrying.
My truck says 80 front and 65 rear. Those numbers are based on the MAX load the truck is designed to carry.
I run 80 front ALL the time because my front axle weight is only around 150-200 heavier when loaded. I run 65 rear because I run 9,750# when loaded and that happens to be full RAWR. Solo I run 35psi to make for a much improved ride. Also the truck will stop better and the tire will last longer running based on LOAD.