CLAD,
I wasn't proposing remarking anything.
I have navigated aircraft to achieve many different outcomes at extremes of altitude and in vastly different environments. My comments merely reflect on how I determine what parameter to use as the "graticule", based on that experience.
If the magnitude of the discreancy is small, it may not matter much. However, if it becomes large, then confusion will reign. As an instructor, my aim is not to contribute to the confusion.
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Stay Alive,
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