Yes Al, it's even more confusing when you read some of the actual scientific literature where it talks about non-Archimedes linear scale values (HUH?), but the difference is quite detectable when you get up to RC 58 and higher as I can sharpen a knife at 58 with regular stones in a decent amount of time, but RC 59 and 60 I need the diamond or it just takes too long. I think I said I think your knives are probably close to RC 61 according to your temper temperature.
Following directions when I had access to a tester was really quite close to what I needed for knives though most directions I had were for machine parts. D2 though was always for blades and those for cutting paper, thickness ran from 3/8 to 3/16" and lengths varied. I had the advice of a HT company I had to send the longer blades to.
Guys like SamaraiStuart taught me about O1 HT and some things not in the "book". So study everything you can and this is a good place to learn new ideas.
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