I have been a custom knife user for over 20 years. All my customs are forged carbon steel knives, the majority camp knives and bowies. These blades are mainly forged by ABS M.S and J.S., Hendrickson, Graham, etc...with flat grinds and convex edges. I do own a few sabre ground knives...Ruana and Randalls #1 and #14. To me the Ruana and Randalls I own may not have the chopping force of the convex blades (since they are smaller and lighter knives) but they excel in sharpness and are equally strong. My question is why does the ABS preach the convex grind so much when it seems the majority of convex camp knives and bowies cannot out perform a well forged sabre grind? I just don't see the performance advantage of the convex grind.