True. The waveform I looked at on screen was to all intent and purpose an oscilloscope reading...

A good interference fit of any type will top trump a loose fit of another.   The string coming up and tensioning it versus getting stuck lower down... You mention reaming. In an engineering sense, a round but rough hole should bed a pin better than a smooth as the tapered pin is in a straight hole, unless you have a female hole at the same taper as the pin, but I wouldn't recommend trying to get the bugger out!

There is something in tolerances though. Playing with a Collings D2H I borrowed right now. Absolute bloody perfection! (Don't tell Mr Windle I said that. He might think I will buy it! Bad enough having just bought a bouzouki and some more pa gear.)