I use the MKII (have not heard MKI) on an Origin Live RB250 arm with the Rega Planar 3 table. Works for me. Good tonal balance, smooth, good extension, top and bottom. Warmth is not my cup of tea, so I didn't go the Grado way. But perhaps mellower than Ortofon Hi-O MC in similar range? My impression, but not from A-B comparison.
