This is the video I did using John's Coticule to hone up my Genco Master Cutler Straight Razor from a dulled edge all the way up through being ready to shave with using only the one stone and the strop. So having been asked to review this stone I would say that it is a truly Excellent Coticule in my opinion. Very easy to use, cuts pretty fast and leaves a very comfortable edge in the end.