Silly or dangerous? We call it a button compass because the RAF camouflaged the things in uniform buttons. Now I've been through some silly metal detector adventures, but even the TSA doesn't hire retired luftwaffe guards- yet. PSKs are usefull because in extreme conditons you may very well have little else. A securely pocketed Altoids tin is one thing. Anything less is getting Mac Gyver cute. Unless your running around Burning Man in body paint and secrete gear in that fake molar even the word MINIMAL should be readable without a fresnel lens. <img src="/images/graemlins/wink.gif" alt="" />