The one hone might be good for touch ups, but you might find you want something else after a while or that pastes are a good addition, Other than that (and a good shaving brush) I'd say you're good to go.

I wipe my blade down with rubbing alcohol at least after every shave, sometimes before too.

I want to echo Ilija's plea for technical advice from your uncle. If he can make that one hone work and keep those razors in that condition then he's been doing something right and we'd sure like to know about it.

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