Okokok, a compass in a knife handle can be used, I'll concede that, in the past I've used a compass for many things, determining site to crest, azimuth of fire,etc... you may could even determine declination, and shoot back azimuths with the handle compass,it's just much easier, to do many more things, with a simple lensatic compass.

Having rambled plenty, I'm pulling for a wrist thong and finger grips.