Dear Hatari: I heard on my system and other people systems all the cartridges name it here but the own DaVinci and the Silver Spirit and IMHO an " all around " great alternative is this one that not only competes at that high level but in many ways outperform some of those named models:
http://www.lpgear.com/product/BOMMC2.html
it has an additional advantage over those very fine LOMC cartridges: the cartridge signal has not to pass through your Kondo SUT. Less stages where the recording signal must pass IMHO means less distortions/colorations and means more MUSIC.
Regards and enjoy the music,
Raul.