"Even much lower line cartridges like Kontrapunkts..."
Careful, lad, I’m listening to a 500 hour Kontrapunkt C and thinking it is uncomfortably close to what I like about the London Decca Reference. That alone makes me think Ortofon have some idea of what they are about. Unlike some cartridge manufacturers. The Kontrapunkt C is akin to the Cadenza Black in modern speak.
I actually owned a Kontrapunkt c, and am sorry I sold it. Loved that cartridge. It’s analogous to Cadenza Bronze in the modern line - which I also have - and in many ways I think the Kontra c was more fun (though they’re a lot alike). Even preferred the "c" over its big brother Jubilee, which was predecessor to the Cadenza Black. The Jubilee was a bit sterile. The Kontra c and Bronze have a warmth and body that seems to be missing to various degrees from the upper line (Jubilee, Windfeld, Windfeld Ti). A90 is my favorite Ortofon so far, though.