Owners of cantileverless cartridges (Decca, Ikeda) or super short cantilevers (Dynavector Karat) should probably avoid using stylus liquids. It is far too likely to get into the body of the cartridge, where it can cause all sorts of corrosion. I've had the coils come unglued from an armature in a Decca this way.
Liquid Stylus Cleaners
I know that some of the cartridge makers, including Soundsmith, say not to use liquids and many of you don’t. From a manufacturer’s standpoint, I can definitely understand why - god only knows what some of us dopes (including myself) will be swabbing on there. I have used LP#9 after every side since 2005 when I returned to vinyl, and never had a problem. And I haven’t been surgically careful either. I do use a lighted magnifier to see what I’m doing, but I’ve brushed crap off the cantilever and never had anything migrate into the cartridge or experienced any of these horror stories I hear. So IMO at least, these warnings about liquids are somewhat exaggerated. Do you use them?