OK we get it you don't like the factory bag system. They just deflate simple as that, you go to the Dealer and get them fixed. Have you heard of a "failure" ? I would think mine would have failed by now with the full RAWR I have ran for around 10K miles. If mine fail they will be covered for 100K by my warranty.
If mine were to deflate I would contact the closest Dealer and make arrangements to have them fixed no different than any other repair.
Let me rephrase that, how long traveling down a freeway, and you loose air pressure ,with weight you have how long would those airbags last, IMO one good expansion joint, and this would hold true with about any airbag they would be toast without air. Yes then off to the dealer you go.
Its not that I don't like OEM airbags, they are probably great, but there are things I don't like about them, would not order them because of those things. I get it with you also, you like them,and thats great, and its okay I don't.
Lets put it this way I could of installed the same system as you , and its actually cheaper then what I have. Its no secret its auto leveling nothing more nothing less, nothing magic.
I want control of the air pressure, ride quality etc. I have had two trucks with aftermarket, and if I want to adjust ,I do. I don't want the airbags doing their thing like OEM.