Hi, Dave:
I used to own a Premier FT-3K tonearm, and used it with several different Grados. The combination was a good, moderately-priced one. The only problem that the Grado cartridges tend to have is susceptibility to hum caused by the turntable motor. This hum is not normally audible when playing an LP. I have not used this tonearm/cartridge combo on a SOTA turntable, but hum was not a problem with my VPI HW-10 Mark 4. Since the SOTA is a quiet table with a decently shielded motor, I don't think you will experience any problems.
I used to own a Premier FT-3K tonearm, and used it with several different Grados. The combination was a good, moderately-priced one. The only problem that the Grado cartridges tend to have is susceptibility to hum caused by the turntable motor. This hum is not normally audible when playing an LP. I have not used this tonearm/cartridge combo on a SOTA turntable, but hum was not a problem with my VPI HW-10 Mark 4. Since the SOTA is a quiet table with a decently shielded motor, I don't think you will experience any problems.