OP
I think I would take a chance on yours.
The AT20ss I showed, with very rare NOS ATN20ss is for sale, $325, I’m going to pass on it.
Seller added one new photo of it,

I cropped it, it is very slightly off (not as much as the prior photo appears).

https://www.usaudiomart.com/details/650236828-audio-technica-at20ss-cartridge-and-stylus-plus-3-nos-unused-atn2015ss-styli/
To me, I want but don’t need it, and it amounts to knowing about a slight zenith error that may self-correct with a little play, or may not.
I already have two AT160ML used gold plated beryllium/microline, and one Victor U-2 with new beryllium/shibata stylus, all looking perfectly straight, tracking lightly, and sounding wonderful.
If I didn’t have them, I would find it hard to say no to the AT20ss which does seem to be a very rare opportunity.