I didn't think about that!!! When we got to the south end of the beach where the VA border is, the border is closed off with a BIG fence!, I did a quick 180 in the sand. I didn't even think about possibly popping the bead doing that!!! I'll remember that next time I go out on the sand with the tire aired down.
On the airing down of the tires, I picked up a copy of FourWheelDrive magazine and there was a product overview of some auto air-down valve stems that were like $5 each. I'm thinking about picking some up. The writeup stated that it can air the tire down in like 45 seconds to a min!