OP is moving towards the Darkside, possibly having read too many other string-related posts by another dear friend of ours on TB.
Maybe the mods can start a dedicated forum ("Overthinking strings" or some such) to deal with all this distraction.
It's still mind-boggling to some of us of a certain age that flatwound strings are so "Popular" these days. The real tapewound mystery here is why anyone chooses to buy 'em in the first place.
I just had a giggle when Spellcheck autocorrected "Tapewound" to "Tapeworm" too. Peak A.I..