Saw Paul Reed Smith discussing pickup placement based upon where the octave harmonics were. That’s why he preferred the sound of the McCarty and Custom 22 guitars - the neck pickup sat where the 24th fret would be.
but that’s a preference thing, and not “correct” nor “incorrect”.
Also, it was a free bar when he was talking so I don’t remember what his science was about.
Although he did talk about pushing almost finished guitars through a band saw if they had ugly tops or “faults” in the Wood.
I facetiously asked why they didn’t just put a solid finish on it instead, or donate to local music charities rather than bin off a nearly finished guitar.
He smiled politely and answered succinctly. I don’t remember what his reasons were.
He’s not as dull as Bob Taylor...but not far off.