That is why when you take a compass bearing you should find a landmark in that direction and hike toward that rather than just walking in that direction. People in general do not walk a straight line unless they have a target.

Also, the Ottamani compass can be carried and the sun's shadow marked with time of day. As you walk, orient the compass so the shadow is cast where it should be at that time, compass direction should be close. $.02 (never had to try that)
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Better is the Enemy of Good Enough.
Okay, what’s your point??