I guess this mostly applies to natural finishers. Say, a Coticule edge is known for it's comfort, Arkansas for it's keen skin friendliness, and the Jnat for it's crisp keenness. After about 20 or 30 shaves (maybe less, I don't know) don't the characteristics of the stone disappear due to stropping? Won't they all feel about the same at some point?
If you value the stones particular characteristics, should you refresh more often?
If you value the stones particular characteristics, should you refresh more often?