How do you know if your TT needle is worn out?

I have a older Sota Star Sapphire turntable with Sumiko MMT arm and Grado reference cartridge, how do you know when your needle is worn out?

bbchem12-03-2006 6:48pm

mlsstl Details Discussions Posts This discussion Message User 1,461 posts 12-03-2006 at 08:03pm Copy Comment URL Report Comment Edit Delete Have someone with an experienced eye look at the stylus under a low-power microscope. Signs of wear will be easily apparent.