Anybody know where these might be in stock? Seems to be backordered everywhere.I use the screw on automatic deflators. I get vertigo bending over so the less time I have to fool around on the ground the better. I just screw these on and let them do their thing. The only down side is they will only go down to what ever you set them to so if you like to have different pressure for different terrain they may not work for you. They are a little finicky to set so it's best done at home when you have time to fool with them. But once you have them set, they have been flawless going down to the preset pressure. May not be as fast as other deflators, but you can do all four tires at once instead of one at a time so I think it evens out in the end and you don't have to baby sit each tire.
http://www.billet4x4.com/pro-deflators-trailhead.htm