After using the edge of my Izula to scrape magnesium from a firestarter, then strike the firesteel, on my last camping trip, I will now take my ESEE-3MILCP along on any further trips. I must have really been doing something wrong, because it dulled the Izula more than I would have hoped, but about what I figured it would. Mostly was rolling of the edge, but still annoying. I'll reserve either the clip of a CP or a dedicated striker for that anymore (which the military magnesium blocks do not have). In fact, it has me seriously considering picking up a second CP in the -4, so I'll have the CP on the knife I really want with me in the woods.