Most of us go on the assumption that any head shell with a bayonet mount will fit any tone arm with a bayonet receiving mount. While it is true that you can almost always make that work in the loose sense of the word, I have found that not all head shells mount securely to all tone arms. So it is unfortunate that you do not like SME head shells, because without a doubt they were made to fit the SME tone arms securely. If you look elsewhere for head shells, I would recommend Ortofon. They have a wide range of head shells in various weights and materials. I would choose one of their models that most closely Supplies the needed mass along with your cartridge body. Ortofon head shells have in my experience mated well with other old line brands of tone arm; like Fidelity research. But other than that, it is a matter of trial and error to find an aftermarket head shell that fits securely. Yamamoto are excellent as well.