That's it. You know how I got started doing convex edges? I bought a cheap Harbor Freight belt sander to do my machetes for yard work. But with the platen in place, there was too much chatter and vibration to do a smooth edge. So I removed the platen. I soon noticed that the edges I ground on my machetes chopped and slashed much better and the edges held up well, too. Because the belt would flex, these edges were convex. Then I read about the expensive Falknivens and Bark Rivers with their convex grinds. I realized that I could do that myself with some practice. And I did.