Audiogon would certainly prefer he buy an add. My own adage is , never buy a cartridge from a cottage manufacturer. You have AT, Grado, Clearaudio, Soundsmith, Goldring and others making MM/MI cartridges.
There is no reason to buy cartridges from questionable suppliers who may not be around in a year. When you hear "money back guarantee," alarms should go off.
As for the OP, He should get a Clearaudio Maestro. That will get him to the highest level this turntable justifies. It will make a noticeable improvement in tracking, high frequency performance and transient response.