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The answer you seek is actually the first point in Step 2
"Use 3 layers of electrical tape on the spine. This concentrates the honing to the edge."

One layer will have you honing on a larger area...

Exactamundo :)

Bevel restting is not necessary when touching up a razor that is in use.
And 3 layers of tape is not for a mini bevel it is just a quicker,easier way of establishing the edge on...