I'm after an all-rounder headtorch mainly for a 24hr walk in December. It'll be possibly be used continuously for 10 hours to see the terrain in front of us - so low power, floody, lightweight (or battery pack not worn on the head). It also needs a bit of throw to help pick out features for navigation. I was about to pick up a Fenix HP30R, but then I thought I'd check in here for advice. Any reason not to go with the Fenix? Thanks a lot for any help.