Fifth Wheel "airbag" kingpins

I had to replace my pin box for reasons other than ride quality, and decided to put a 5th airborne on it just to ease the pounding on the 5er. Many of the issues I've had over the years with my assorted RVs have been a result of the pounding they take going down the road. It makes a noticeable difference in how well things stay in place in the refrigerator, cupboards etc. It also makes a noticeable difference in the truck when you hit the hard bumps, uneven concrete joints etc. Hard to quantify effects but I'd say it's worth it. Not sure I would have changed it though if not for needing to replace the pin box though as the ride was already good.