Review on Spyderco Tri Angle Sharpening Resistance Professional Grade by Meech Elliott

Cubic Boron Nitride as specified here is an abrasive almost as good as diamond. It is mainly preferred for high-speed machining because when hot, the diamond's carbon can diffuse into the steel and alter its quality. So why use it here? I think that's the Spyderco philosophy "I'll have everything individually". If there's a material, a mechanism, or a specific use for a knife, they want it. I tried these wands face to face with a diamond. In fact, you use one on each side of the blade. They look exactly the same, but the c-BN appears to be sharper. Even if you slide your finger across the surface, there is a difference. Almost no pressure is required to make it "bite". However, the result looks the same, just with less pressure. C-BN crystals break more easily than diamond, so the lightest print that works is like a ticket. I would expect the difference to be larger with very hard steel like S110V. But I don't have a knife to sharpen, and I don't want to sacrifice a factory blade for my sharpening skills.