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You put a blade to a fast running high grit belt, and the chances are the heat builds up so fast the temper is ruined before you can reach the water bucket. A slow running water stone is also not a...

It's not a hard science. The ratios observed 'in the wild' vary quite a bit. If your razor is 1/8 wider than normal for that thickness, it really doesn't matter that much.
You don't have to carry...