Originally Posted by
outback
When it comes to setting a bevel, close observation with magnification is a must.
Setting a proper bevel on a razor in bad condition can take up to an hour or more, depending on the grind and damage needed removed. Trust me, I've honed some old wedges that took a couple days of sessions, to finally come together. Razor steel is extremely hard, and doesn't abraid very easily.
Learning to listen and feel what the stone and steel are telling you, takes years of experience. I've been putting steel n stone together since I was a child, so its easy for me understand what its saying.
And yes, very few can hone knives and razors. Typically their good at one and not the other, but their are those of us that hone all types of edged tools. A very far and between, person. Good luck with your knife guy.