I sharpened up a coldsteel urban pal tonight and found it nearly impossible to sharpen the small teeth between the larger scallops. How do you guys go about doing so? the large scallops I had sharpened with a small screwdriver and sandpaper and finished it off on my slotted paper wheel. I was tempted to just grind the thing to a plain edge blade but its not my knife so I pretty much just left the small ones which look like rodent teeth/claws.