Sounds like good advice. Since tens of thousands were sold between '92 and '97, it seems reasonable to expect a few will have never been returned.
Roamin Wade,
Speed depends on the media and the type of tumbler (vibratory or rotary). IME, rotary tumblers and walnut media make for the slowest combination. A vibratory tumbler that is not overloaded and using
Lyman's GREEN corncob and polish media is the fastest, and when it is new, an hour probably will take care of business. That gets longer as time goes by. Note, though, that you will get a more mirror polish using
their slower RED media, which is the aforementioned walnut and rouge and is slower acting.