I have a 39 ft 2000 Damon Escaper on a spartan chassis. The air bags don't maintain their height more than a day or so. I parked with the wheels turned hard right and left the coach for a couple of days. When I came back I found the fiberglass fenderwell on the front right side resting on the wheel and a three inch section of the fender was broken off.

Just thought I'd pass along the wisdom of my usual learning curve ( hard knocks )