Bought FK S1 Pro few months ago and after quick testing I liked the handling of it. I compared it to my Jaakaripuukko 110mm. Not long ago I took it outside and batoned some birch with it. The edge bent badly. You could easily catch your fingernail against it. I then sharpened it back and tried again and got the same results. I then sharpened it once more and started batoning just small pieces of 1" in thickness at a time. Still the same issue. I then used my Jaakaripuukko at the same logs and while it required more batoning strikes because of the thinner blade, it suffered nothing. My dealer contacted FK and explained this and FK pretty much replied that their steel is very good, thank you very much. They indicated I had used it too hard, I almost started laughing out loud at the office while reading their reply. And it looks like the dealer enjoyed it as much as me. I would understand their argument if I had a) Regrinded the blade to more aggressive edge or b) Used it on knotty oak or similar. I guess Jaakaripuukkos use really good steel for their knives, making S1 Pro look like a chinese-made butter knife next to it?