Not sure upper stableloads are right for me (UPDATED)

I have 2017 F-350 XLT with AF-990. Upper SLs, Firestone air-bags, Ranchos.

When camper goes on, upper SLs engaged a bit. Small amount of air in the bags brings back to level. Shocks on 7-9. Rides like a champ. Tires are usually 80 psi rear 70 psi front.

Waited at first on the Ranchos. After a few rides I installed and they took the taxi ride out for me.

Hope that helps.