Icon RXT spring Firestone Air bags question

I have a 2019 DCSB with an Icon stage 8 lift, Rear RXT springs on medium setting. I get a lot of rear sag when towing and a little sag now that I put a Snugtop camper shell on. My ride quality is pretty good. Would you guys recommend setting the RXT springs to the heavy setting (adding extra leaf) or getting Firestone Airbags with Daystar cradles?

 

I guess what I'm asking is what option will be less stiff? I've heard the airbags can be stiff with no load.

 

I recommend going to the heavy setting. I'm running option 3 (heavy) . Maybe 10% more stiff from option 2 (medium) My current set up has a lot of armor so that's probably helping smooth the ride out a little.

 

I’m running the heaviest option for the RXT and timbren bump stops with a RTT and a roll up tonneau cover and always loaded with various camping gear or tools. It’s pretty smooth.

 

Two is perfect. Three is the same with a couple hundred pounds loaded.
I don't have air bags, but have timbrens from when I towed. No complaints with them then or now

 

I’m running option 3 rxt leaf with kinds 2.5 with adjusters. I get A LOT of sag when towing my trailer. I’m about to install airbags. And honestly when I’m loaded even without towing the leafs say significantly.