@Brokor, that is good stuff to know. The most important real world test of compass navigation is at night. While still at The Basic School (at 35) I chose not to do an offset around water that I could not detect the size of by throwing things in all directions. The beaver was surprised to find me fording his pond, but the water was only chest deep and I didn't get off course. It was a little colder and whiter in Norway, but when we got lost on our midnight skiing trips we could always break out a compass and find our way home.