MM Cartridge Talk

ADC XLMs sounded great - smooooth and far more detail than a Shure V-15MkIv, but had a nasty habit of the suspension just failing - about half the ones we ever sold just collapsed. The other half were wonderful. They were extremely compliant, and favored tonearms like the Grace 707 on a heavy Japanese DD. Never would get the ADC/707/TD-125-II combo to work, although a couple Linn-Sondek LP-12/707/ ADCs I heard seemed to work well. 

When you say 'MM' do you really mean it to be limited to MM or can we include MI (Grado, Soundsmith) and H/O MC (Hana EH, SH, Sumiko Blue Point #2, Dynavector 10XL)?

All those are roughly comparable to the Ortofon 2M Black or Bronze, and don't require additional step-up devices.