I’ve been Wicked Edging for about 12 years and I have both the Pro with the Gen 3 vise as well as an older setup with the Gen 1 vise and I’ve found solutions for every knife I’ve been asked to sharpen, from itty-bitty little pen knives to 12″ jerky knives to an Alaskan Ulu. Some have required the assemblage of some gadgetry, but I’ve never letched over a competing system.
A caveat: I’ve never been presented with a diamond-profile dagger, so there’s that. Like the dagger, those knives without flats are the most problematic but most of these can be made workable with some tape and leather padding.
Convex edges are easily done on the Wicked Edge. Finish the apex as you would with any other knife and then reduce the angles in one degree increments, taking just a few strokes with the higher grits at each step. The facets will blend together and produce a fine convex profile. If you finished the apex at 1500 grit, then do three stroke each in 800, 1000 and 1500 for each angle increment.
I do not buy into the idea that convex edges are stronger. They clearly perform better, but the fact remains that there is less steel backing up the edge. I don’t see an argument that would account for greater strength. How does removing steel add strength?
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