I've got Staun as well... they work great but these things are way over-priced IMO. I split a set with 60wag, so we each have 2. That solution has worked well, I've never been the last one aired down holding everyone else up, there's always someone else chasing down a dog or taking a piss or doing something else- wait, that was me. But if you have deflators you can do all that crap while your tires are deflating, they're definitely worth having.
82 fj40, 99 uzj100, 06 gx470
05 525EXC, 01 XT225, 07 TTR90, 07 CRF50