The effective mass of the OL Silver mk3 is 12g. It most likely is not a great match for a 1970s MM cartridge with a high dynamic compliance that is designed to track at 0.75g. That cartridge would probably work best on an older Black Widow tonearm. Most other cartridges considered medium compliance and up the OL tonearms could work very well. There are calculators for the resonance based on the mass of the arm and cartridge (including mounting screws) that will reveal purported compatibility. The EMT cartridges are medium compliance (around 12-15 x 10-6) and the Chrisma 103 is low compliance (around 7 x 10-6). The low compliance Charisma might appreciate a heavier mass tonearm, though according to Mark Baker at OL (worth reaching out to by email…) it may surprise both of us.
