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The nice thing about a 3"-wide hone is that you can put a blade on it, slightly canted, and run it _straight up the hone_ to hone the full width of the edge.

With a narrower hone, you must use...

There are people in the "Vendors" section who will make scales. "Stock" scales -- plastic -- are available from some of the online shops. I got a few from a Canadian supplier:

Straight Razor...