I used a flea market special at work a cricket copy, the s shaped blade and all. I decided to get a cricket with the serrated edge and it seemed perfect at first. Now I have a rolled edge, from cutting a strip of plastic to open a bottle (like jugs of milk have). It's still sharp and can cut cardboard and all but I'm no better off than I was with my flea market special. The serrations are long and pointy, and apparently weak. The fact that it is a totally serrated edge makes it difficult (impossible so far) to make the edge non-rolled. I've done the same thing with my benchmade 705 and my kershaw leek and hadn't had that happen. I really expected the worst with the leek as that is such a fine edge,I refer to it as my "folding scalpel".