If you carry this, I hope you aren't carrying any other compasses. At the very least, I have my concerns as to how it would make other compasses read when you use them, and about it magnetizing the other items in your kit which is probably not going to hurt anything but would be an annoyance at times that you just don't want to deal with.
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-IronRaven
When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.