The AT VM760sLC is an excellent choice for your arm. The Goldring 1042 would be another. The Nags are on the stiff side for the SME. My favorite MM is the Clearaudio Charisma. I do not like the Grados and Soundsmiths until you get to the more expensive versions. IMHO the stylus is king. The AT and the Goldring have top shelf styluses you do not see in other cartridges.
Time for a new MM cartridge
My Grado The Reference cartridge is up to almost 500 hours and is beginning to sound a bit tired. I used a restored Thorens TD-125mkII table fitted with a SME 3009 II Improved w/ removable headshell. I used the onboard MM phono stage of my Yamaha A-S2200 integrated.
Have previously run a Grado Ref Platinum and Clearaudio Virtuoso Wood cartridge. I'm considering Nagaoka MP-200 or MP-300, AT VM760SLC, Ortofon 2M Bronze. Anyone here have experience with those cartridges and the SME arm? Any other recommendations?
I listen to classic rock, blues, jazz, metal and a bit of outlaw country.