I picked up a 3-sided Hewlett Jewel Stick today. It is basically a 3-sided diamond steel (coarse, medium, fine). I prefer to sharpen on a steel and then strop. This is the only one of its kind that I could find that is large enough to sharpen my Fehrman on. Has anyone used one of these? Do they have a good reputation for quality? Just trying to find out if I made a wise purchase. Unfortunately, none of my blades need to be touched up right now.