The technique we teach in bando is somewhat different:
Immediate horizontal level slash opens opponents throat, windpipe and maybe carotid artery, sometimes decapitating him, or at least severing neck muscles to the spine. Turn of wrist and downward diagonal cut likely breaks clavicle [collarbone] rendering strength of pistol hand useless, and opening pectoral muscles of chest during followthrough. Ow. Final third stroke is again a weak-to-strongside horizontal cutopening stomach cavity and probably disemboweling recipient. Entire three-motion Z-cut takes less than a second to execute, with practice, and results in massive shock to opponent, and big wide-opened surprise look in their eyes.
You can do pretty well with a field shovel or intrenching tool, as well.
Ayo Ghorkhali!
LOL! That would work.