Soundsmith SMMC1 or Clearaudio Maestro on Rega P25

Has anyone compared these two cartridges, or have any comments on the pros and cons between them?

Also, I am wondering if the Soundsmith Aida/SMMC1 cartridge is compatible with the Rega P25 turntable. I have heard, for example, that the Grado and Cartridge Man Music Maker 3 cartridges tend to pick up hum from the motor in Rega turntables, particularly as the cartridge moves closer to the center of the record. Does anyone know if this is the case with the Soundsmith cartridges as well?