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You do not necessarily need more than one razor, as long as you are able to maintain it. Maintenance will, at some point (somewhere between three weeks and six months, according to this forum),...

Eh. The only reason I traded the Bergischer Löwe is to keep you from doing funny things with its name. *harrump*
But that is not to say that the Bismarck was not a great razor. Quite the contrary....