affilatura del rasoio a mano libera. Bisellatura naturale o sintetica?

Today a quick video (for my standards) on the differences between a bevel on synthetic stone and one on natural stone. To sharpen a straight razor, what will be the best choice? I don't make an opinion, but everyone will make their own assessments. As usual, for any further information or just to have a chat, I'll be waiting for you in my Facebook group: "Branca What Else?" at the address:   / 1200726440295370