(idm) replacing needles

From j. miskiewicz
Sent Thu, Aug 27th 1998, 19:56

does anyone have any suggestions as to when i should replace my turntable
needle?  it's a player i got used (pioneer PL-4 direct drive) and plays
fine, but i'm not sure how old/used the needle is.  any symptoms i should be
paying attention to?

thanks,
j.