Klipsch MCZ-7 Moving Coil Cartridge

My friend Chris dropped by today and brought these rare Klipsch cartridges. We checked them under the microscope fortunately the cantilever and tip are intact on both of them. Can't wait to give them a spin. For those that think this is weird for Klipsch it really isn't. PWK actually was applying for a patent for a cartridge the same time GE did for a little cartridge called the GE Variable Reluctance cartridge. According to Klipsch historian Jim Hunter he was only a few months behind GE on patent application.

 Should we replace the foam or keep the original lol...