You need to take into account that a cartridge repair can take a very long time nowadays, even with a professional. A few of years ago I sent my Audio-Technica AT-20SLa + another cartridge to Dominic Harper at NorthWest Analogue in the UK for repair & checking. 1 and 1/2 years later I asked if he had have time to repair my carts. Two weeks later he sent them back in perfect operational condition for a very reasonable price. A few months later I sold them both for a very good price on eBay. I couldn´t be more happy for his services.