I've had the Stauns for a few years and they work fine, but they get pretty slow around 15 PSI and painlessly slow around 12. I haven't gotten around to it yet, but I will be getting the Currie E-Z Deflator
. They go for $30. They pull the core out (and can remove it altogether if desired) which goes extremely fast, as mentioned, and you can immediately check the pressure. Definitely faster than 4 Stauns going. The only advantage the Stauns, or similar, would have is that it would allow you to stand around and talk to others if you're on a group run. I would prefer not having to wait if it's not necessary.