I was looking at the Spyderco Calypso Jr with ZDP-189 steel:
I did some reading up on this steel, and some articles state that it has a RC of 65-67. Supposedly, that would make a blade pretty brittle, but not this steel. What are the advantages / disadvantages of this hardness?
There are not a lot of knives out there with this steel. The Calupso Jr specs state "sandwiched between two layers of 420J2 stainless is a single layer of the new Hitachi super steel - ZDP-189", is this good, bad, ugly, optimum?
SO, I'm calling on the blade masters to help put this into perspective for me please.