Hey, I buy into the hat thing too, all I'm saying is that it's good to know that when I cover my head, I'm helping to keep in 10% of my bodies heat, not the 70% (or 50%, or 35%, etc.), I had always heard and believed. None of these experts are telling us it's no longer advisable to wear a hat, but isn't it better to know the truth?

If Garmin announced tomorrow that they were terribly sorry but they and all the other GPS manufacturers had been lying for several years, their units are only accurate to 1/4 mile at best, would we stop carrying them? I hope not, if I'm lost I'd rather know where I am to the nearest 1/4 mile than nothing at all, but It sure would be good to know. If ACR's PLB's typical operating life was reduced from 40 hours to 4 hours, would that prevent you from activating it when needed? Of course not, but again it sure would be good to know. 'Nuff said (I hope!).