I have found out on our forum that this isin fact a M75ED. Where does this "stand" in the Shure food chain. I enjoy the M91 but this cartridge seems to sound "muffled" and "ch" ie "stacticky" on highs cymbals,with a parts express replacement cartridge. I have it tracking at 1.5 grams with same anti scate setting. Is this a common characteristic?? Is the 91 a better sounding cartridge than the 75? Is the 95 better yet? Any feedback would be appreciated.