1. I want to avoid thickening behind the edge.
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2. I want the right bevel to form one continuous arc with the right face.
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So I start far behind the edge, at the the lowest possible angle, and only raise the spine little by little, until the very edge has been reached. With badly maintained, unknown knives I verify with marker and loupe to make sure the bevel is clean and I didn't overlook a microbevel. Then, and then only, I start doing the same on the opposite side.
It restores a former configuration, that has slightly moved upwards to the spine. Only to be done if you're fine with the previous configuration. Note this can be done with any unknown knife, splendidly ignoring angles, degrees of asymmetry, proportions and other imaginary concerns.