Truck Bounce

I have a 2014 AF 811S as well but on a Ford F350 . Similar set-up as OP. When I bought the camper, I brought along a tape measure and used the airbags to restore the truck bed height to where it was pre-camper without paying attention to the springs. As such, I had the bouncing issue you are talking about because all the weight was on the airbags only. They aren't designed to carry all the weight but are supposed to help your overload springs and level your load. I'd lower the airbag pressure if I were you. No need to put max pressure in it. When I get ready for a trip, I don't inflate to a specific PSI for each bag. Instead, I inflate past the point I need, but then slowly de-flate the bags until I see the overload spring engage with the rubber stops about an inch on the front and back. This allows the airbags to work with the springs, not independent of them, and allows the springs to do what they are designed to do. Has nothing to do with COG and I still have my original shocks too. The nice people at Les Schwab tires (when I got my 19.5's) taught me this, as I never would have figured it out otherwise.