I have both the upper stableloads and airbags on my truck. I run 60 psi in front and 80 psi in the rear tires when I am hauling my camper. I also have the camper package so it has the sway bar as well.
I haul my camper fully wet with the water and hot water tanks full as I never know if and where I will be able to fill the tanks because we typically are off grid. When I load my camper I set my airbags to just where the upper stableload engages with the overload spring. On my truck that is typically around 25-35 lbs. If I am also pulling my ATV trailer then I find I am usually running about 40-45 lbs in the bags.
I like my setup and it feels very stable to me.
