It looked to me that the blade was left too hard. The baton technique used would amplify the heat treat issue. The handle of the knife should be kept above the point when hammering on the spine. Breaking the stub left of the remaining blade indicates a bad heat treat also. Softer/springy knives will go beyond the point of elasic deformation and return to the point of elasic deformation. Harder, less springy steel will break at the point of elastic deformation. That said, I'll stick to Rat Cutlery . The Scrapyard test is interesting, but the 1" or so in the vice is not subjected to a 90 degree bend. The radius is delivered to most of the blade. Think car springs. Still a very impressive test.