Mine does not have a convex edge. In fact my only complaint is that the edges of the handle are sharp. A little work with emery paper cured that problem. That same sharpness on the spine of the blade makes for outstanding sparks from a ferrocerium rod. I've seen paracord wrapped handle and belt sheath modifications with this blade. Renders it a relatively inexpensive sheath knife. BTW : razor edge using flat diamond stone followed by sharpmaker. _________________________________________________ PROVERBS 21:19