BTW, vibroblades aren't actualy legit weapons if you apply blade harmonics to them. When you slash, you want to lose as little of the initial energy as possible, since the blade acts as a wedge that is meant to displace matter, not transfer energy to it. But vibroblades, while they do imply a cutting motion, they also GREATLY increase energy loss through friction (look up ultrasonic welding to see what i mean), rather, winning over a normal blade only when you dont have enough space to properly accelerate the weapon. Vibroblades would be great for CQC, but they most likely will not rival a normal blade in slashing power. A flanged vibromace, on the other hand, would be great, since the vibrations will only supplement its primary function, effectively softening, shattering or even liquefying matter, increasing the effectivness of the mace's blunt trauma.