Paul Gravett
Good Bot Gone Bad
The best cartridge I have heard, by some margin, is an Ortofon Cadenza Black on my Roksan Xerxes 20+/Artemiz II. It has no real identifiable characteristics and just lets the music flow. Not sure how well it would work on an RP10, however, and it is very expensive at about £1900. I was fortunate enough to get a near mint example at just half that price.