EridanMan writes:

I'm sorry... call me lazy, but if your not going to keep them all
updated with Magnetic north, then at least stick them on a standard
baseline... True North, for example?

I think aviation should have started moving towards true north for everything
long ago, but that's just me. The constant shifting of the magnetic poles
(which is accelerating) means perpetual updates for anything that depends on
magnetic north (and you can't use magnetic south, because it isn't even
exactly opposite magnetic north).

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