One of my reasons for getting into internet forums is because I wanted to know how people really used knives. I learned that soldiers are more likely to use the tool that's easiest to get to for the job, than the one that's most appropriate. I hope Zu is making these things plenty durable, because they're going to get rapped against wood and mild steel a ton more than they're going to get used to shank a bad guy.
I have serious doubts about the ring. Seems a flat hilt that can either hammer or get hammered on, would be the more useful shape. I also wonder about the width of the handle, unless they're going to supply these with some paracord to help raise the coefficient of friction. It's a hella sexy dagger, no doubt. It just doesn't seem like the most generally useful piece of kit, and with soldiers carrying some 80 pounds of ruck (last I heard anyway), stuff that serves one specialized purpose, that is not guns or ammo, tends to get stuck in the foot locker.
But I'm just a civ, so what do I know?