I have tried one Supex cartridge SD-909 mkII on my Reed 3p "12
It was in exellent condition, but it was also dark sounding cartridge, i tried a few MC phono stages, headamp etc (but no sut). I love Reed tonearm and highly recommend it, but Supex was definitely not my cup of tea.
I have a few High Output MC cartridges that i like: Argent MC500HS (Sapphire cantilever) and Argent MC500. Both made in the 80s (OEM) by the same company who introduced recently $8000 Etsuru Urushi LOMC https://www.audio-activity.com/etsuru-urushi.html
Look at the compliace of the Supex, if that's 8cu then it must be paired with high mass tonearm.
Kiseki is probably mid compliance, so no problem with modern arms, but it depends on which one.
Why do you need HOMC cartridge if you can find much better MM/MI or LOMC as an alternative?
@genghis6400 , Congratulation; Kiseki Gold spot is the latest
and the best Kiseki. Recognizable on the 5 screw threads on both
sides and gold spot on its front side. The ''modern stock'' is a fake
Gold spot. Actually the Blue which was the first version of the LOMC
Kiseki. I own 5 Kiseki's 3 of them the Gold spot. I hope you wrote
to Durob in Holland because there is no such thing as an address for
Kiseki. What you need is the distance between the spindle and the
pivot. Aka the ''effective length'' for the stylus. By moving the cart on
its headshel you can adjust this length easily.