I just split a little less than a half cord of freshly felled, green Oak tree. The SS did a great job of splitting everything, usually on the first whack. But, now there are a lot of little rough spots, nicks, etc on the edge. Almost looks serrated, there are so many. The Fiskars sharpener does not smooth all of these things out. I'm surprised that the metal is so soft, though I guess it has to be if you can sharpen it. This was a very clean tree that I took down in the middle of my woods, bucked it immediately, stacked the bucks on a pallet then split it all two days later. No metal in any of it. No dirt, rocks, etc. And the wood didn't seem particularly hard. I'm not sure I like the way the edge is easily damaged, though it didn't seem to affect its ability to split. Is this something I should be concerned about?