Eric to pick up a piece of steel and not know exactly what it is and forge a knife, is very hard to be successful. And if you have worked an item before like a farriers rasp, it could be a totally different steel than it was last time. Different steels need to be treated differently. If you pick up a steel thinking its 1075 but it's actually 1095 and quench it in water instead of oil it's going to crack. Different steel need to be forged at different temperatures. If your working on what you think is 1095 and you're cold forging and that steel end up being something else yo can crack the steel. When you're heating your steel to be quenched if you don't have the right temperature for that particular you can warp it, crack or even shatter it. I've seen some of these guys knives and they are gorgeous blades, they are anything but amateurs