This PC-1S cartridge is the improved version of the original PC-1. It is now extremely close to the PC-1 Supreme in performance. It has only 180 hours. This value is derived by my having tracked the total number of LP sides played and taking the average LP side of 18 minutes. The average break-in time for this cartridge is 100-125 hours. The cartridge is in perfect condition and the accessory packs are sealed, never having been used. See Marshall Nack's review at https://positive-feedback.com/Issue70/air_tight.htm. I am the original owner. $3450 shipped in CONUS. If you need to see my feedback, please go to Audiogon. My user ID there is Nlevy.