I was going through a book on Greek and Roman warfare and came across an interesting picture. Circa 220 BC spanish warrior with a falcata sword and a matching knife that fit into the same scabbard. Now the falcata (or Greek kopis) may be an old relative of the kukri but what I found most interesting was that the knife (blade looked about 8") was a ringer for one othe the smaller HI's. Seems there are similar solutions to similar problems even when separated by many years. Worked then - works now.