A while back I decided to concentrate on using one steel only to cut down the variables to getting a better heat treat. Being a rookie I decided on 80crv2 that I get from Aldo. I started by using Aldo's heat treat data. Many knives later they've all hardened but none are satisfactory, just somewhat hard. The steel is 1/8. I use canola oil and keep it clean and fresh. Because it took a lot of practice to get good temp control on my oil it's been all over between 110 and 150. Done many though recently with temp control at 125. Still mediocre results. Every heat treat was normalized 1650, 1500, 1350, all 10 min. Then held for 10 min. At 1500 and quenched. This is above Aldo's recommended 1465-1480. Tried his temps, tried 1500, All decarb removed, still just barely ok. Then found a post saying a lot of guys h.t. 80crv2 between 1515 and 1575. So I did the h.t. 1575 for 10 min. then into 125 degree canola. Excellant results. Am I missing something here? I'm wondering now do I work down to 1515 or try 1515 and move up. I'm excited to get this result but I know there might be things going on inside the steel. Any advise would be appreciated.