Thanks everyone for your comments. Next time around, I will definitely learn how to do this for myself. This was part of a bad experience with a local dealer. I don't really want to go into details or slam him publicly but he was less than honest in his dealings with me, installed a cartridge that I never authorized him to do and ruined the cartridge that I brought to him to install for me because he really wanted to sell me one of his cartridges, than lied to me and told me the cartridge I brought to him was no good with a totally bent cantilever and the magnet missing. This was a brand new Goldring Elan that a friend sent to me. I get it, that it might be like putting Formula 1 tires on a Yugo (My TT is a Thorens TD125 mkII) but I didn't feel like spending the money this time of year. The plan was to listen to it for a few months and then buy a new cartridge, but now I know where I'm not buying it from......