When I was first learning how to use Escher's, I didn't really know how to use them. I temporarily gave up and sold mine. Since then I continued learning about how to use them. A few weeks ago I bought a Dark Blue Escher. I have 6 straight razors, when I'm testing a new stone, I test it on 1 razor to make sure I like the edge the stone gives first before I put it on the rest on my razors. With the Dark Blue Escher, I was so confident I was going to like it that I used the Escher on all 6 of my razors before I had even tested 1 razor with it. I was right! I really like the edges the Escher give on my razors. Nice, smooth edge. I feel great that I know how to use them now.