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I think you overestimate their steel making qualities.
Supersteels rely on the ability to add and control the precise amount of special alloys that were largely unknown at the time, and which could...

Sorry for the delay.
I could see how for supersteels, you need to go to diamond.
For regular steels, I find that using a DMT to raise a slurry on the norton 1K gives a very aggressive slurry....

Did you raise a strong slurry on the 1K? Because that's the situation I was referring to.
Using a 1K with only water and light pressure is indeed a diffeent situation. But with a strong slurry, the...

It is a common misconception, but diamond plates do not hone faster than synthetic hones.
Quite the contrary actually.

A 1K norton for example has a very high surface density of abrasive...

The short answer: we don't know.
I've never seen documentation about the HT specifics of Wade and Butcher.
To be honest, I doubt it is public. HT information caused the rise and fall of empires.
...

No, but the tester needs a stable surface to push into.
It could be problematic to set up the spine in a way that would be stable and not prone to sliding.

Not really. If the tang was hardened with the blade, it will have the same hardness.

Would you mind using paragraphs with a blank line in between? That would make your information much easier to read.
Nice work btw. :)

Honing a 66 HRc blade will be like whittling your hones: An exercise in frustration.
Btw, where does the number 32 come from? From what has been tested to our knowledge, old sheffields are all > 55...