i have been experimenting a lot with various natural finishers and my edges are keener than ever. i started with a kosher cotiucle, moved on to Thuringians and ended up with several Jnats. However, the keener my edges the more razor burn below the jawline. Next week I will be visiting Ardennes Coticule. I will be looking for a coticule that gives both a keen and a smooth edge. A lot has been written about the qualities of coticules coming from different veins. Any thoughts on what I may want to look out for?