This F3/A4 stickler can be avoided by tuning from a C fork. I don't comprehend the devotion to an A fork when a C fork works just as well, actually easier in my understanding. Tune C4 to the C5 fork then F3 to C4 as a fifth, Tune G3 to C4, D4 to G3, A3 to D4, etc... Has worked for me lo these many years. A440 every time. -- Regards, Jon Page
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