Air Bags/Springs - Firestone, Air Lift or?

I have firestone air bags and will not run them with over 5psi when empty, rides rough when I do. When I first got the camper I would run 60-65psi and after a while I realized we were hauling on balloons and not working the suspension correctly. I then began to run whatever air needed to have the overload springs just making contact, that was a big improvement in ride. I also have torklift quick disconnect stableloads and those are great. They turn out and make no contact whatsoever when not needed. When loaded, I run way less air in the bags now, maybe 15psi. Together they work great, if I were to pick just one the stableloads would be my choice.