Having added airbags last fall- I removed them a couple days ago. Went back to Timbrens that I had on previously. While the bags kept the springs from flattening out- I felt that they added to the side-to-side sway. The Timbrens have a much better dampening effect.
Now running BigWig anti-swaybar, Timbrens and home made stableloads (reinforced rubber shims between the bottom overload leaf and the spring pack).
Handles our Lance 855S really well. Keeps the top heavy feeling to a minimum- even with OEM shocks (only 10k miles on truck so the shocks aren't too bad...yet. Probably Ranchos next year if needed.)