Wonderful arm! High mass tonearms mate best with Low Compliance cartridges. Any cartridge whose compliance rating is below 12 x 10 to the minus 6th is a candidate; example: 8 x 10 to the minus 6th cm/dyne. This list might include Kiseki, Supex, Denon 103 Series, some Koetsus, many Grados. Also, you might want to check with Sumiko and Musical Surroundings to see which of their current brands/models are in that category. Happy listening!