Gentlemen,
I noticed the other day that I can feel when my edge is shave ready by the way it feels on the strop.
A rough edge will have a rough sensation on the strop.
A smooth sharp edge has a smooth almost sticky sensation.
A dull or rolled edge has almost no draw and feels slippery in a way for me.
I don't know if anyone else gets this sensation while stropping but I think it is a good indicator to know if your edge is shave ready for me personally.
Not a sure fire way to tell but are any of the tests?
Let me know.