it'd be a lot easier to shove one of these thru an eye slit in a helmet than thru the mail at the groin if the opponent was down.(my knife)
the ballock grip looks a bit like a Scottish dirk taken to it's suggestive extreme, i understand the raunchy Elizabethans wore these on the front rather that on the hip or small of the back to emphasize the phallic connotation.
