I find the serrated blade on my CRKT M-16 is horrible. The teeth are too small to sharpen and just snag on things. Nice round scallops like on a bread knife are easy to sharpen (easiER anyhow) and effective. I have a couple of so called combo knives but I find I don't use them very much. I tend to always go for straight edges and save the serrated blades for backup emergency boxes like in the car where sharpeners are scarce.