Miyajima Labs Zero Mono Cartridge

I bought this earlier this year and never got around to using it. It has been safely boxed up since I received it. Here is the original listing info:
"Lightly used Miyajima Labs Zero cartridge for sale. One owner, and not used more than 150 hours, since most listening is done in stereo. The cartridge is in perfect shape, and was installed by a very experienced professional on a very high end turntable. It is the .7 mil stylus version, which is usable on both mid 50s mono as well as later and reissue mono pressings. These cartridges do not come up that often, and are not available at a discount."
Free shipping in the CONUS and no Paypal fee at my asking price.