Thanks a lot for the info Randy. I wouldn't share the winning formulas either...
I will most likely try to get one of those Mud Puppy LE (154CM) and blow my friend knifemaker away with some amazing demonstrations!
He uses ATS-34 (154CM's twin) and he knows how brittle these kind of martensitic SS at such high hardness can be, so he will be extremely amazed like me how tough the SY are! Even for a non-SS blade, what Myke did on the square tubing would be very impressive!
You (I think it was you?) said that the Busse Forum on BF was a good place to find one... Do you know if BF still refuses registration with hotmail email?
Thanks to you too CoyoyeBC for the welcome!