I have taught navigation for a mountaineering class for a few years and here is my opinion. Any base plate compass like a Silva Starter 1-2-3 compass will work fine as long as it has 2 degree graduation. I use the
Brunton 9020G Compass, Base Plate, with Declination Adjustment. I enjoy using my map and compass, but in hundreds of trips out I have only had to use it a few times to find my way. Mostly I use it to ID mountains or find out where I am on the trail even though I am not lost. It is mainly used, by most people, in an emergency, even though they "should" practice with it more often.