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Whatever works is what you would want to use IMO. On those old Sheffield smiling blades the rolling x is often the best bet.

Yeah, those old boys knew what they were talking about. :) Glad to hear that it is working for you.

Take a look at page 24 of the 1961 barber manual excerpt here, 'Honing Technique For the Advanced Student'. You don't have to follow that exactly but it'll give you the idea. IOW, work on the heel...