HAHAHA! man, thats a good one. I can almost see that one happening. I was taught to flyfish in a parking lot, on a military base. Casting, retrieving. We did it for like 2 hours. I never did get to go flyfishing. Ah well.
I carry my old trusty military lensatic compass, and, IIRC, within 3* was acceptable for navigation. That was for compass to cheek method. Center hold method was like 10* or so. Personally, I ALWAYS use compass-cheek. I have tried to use civilian type compasses in the past, but cannot seem to get the grasp of them. Someday, I will run across someone who has the patience to show me, and I will dump the heavy one I carry. Until then, I am stuck using my old, beat up (but still accurate and glowing), lensatic.