FWIW, this may be one of those situations when "It goes without saying,"
doesn't, so...

A positive control check isn't - or shouldn't be - "merely a control
resistance" check; it's (easily - and should be) also a "control position
check," as everyone who's ever built flying model airplanes intuitively knows.
Use the next unflyable day - or boring day at work - and play with paper
airplanes to help burn this "goes without saying" truism into your neurons!

Bob W.

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