I forgot to add....
My Urban Mutt has a "convex edge" which requires a certain type of sharpening system. I plan on making a "paint stick strop" very soon. The Ceramic sharpener is a left over from when I had a Gerber LMF2 in my GHB. I kept it because it can be used to sharpen the Spyderco Ladybug. However, I fully plan on replacing it with a Smith Pocket Pal, because the PP has a diamond rod for serrated edges (my Delica 4 has full "Spyder Edge").