Yes the Hudson device is effective. Moreso than other mechanical removal devices that I have tried such as the Ortofon brush, the Onzow gel, Magic Eraser and so forth. I use a high quality stereo-optic microscope to examine stylus and cantilever to ascertain results. It is a Wild-Heerbrugg M5. On the other hand, a chemical cleaner such as the Last product is even better.
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