I purchased a smith's tri-hone and am trying to sharpen my CRKT M16-12z with it, but I absolutely suck at sharpening knives. Any tips? First off, it appears as though the stones were not glued into the fixture perfectly flat, so that is not helping any. I just can't seem to get it sharp at all, I'm guessing that I am not keeping the angle consistent, but the little plastic angle guide provided is worthless.