Not sure if you're talking to me about KM or not, but I'll bite...
Btw, who is that girl? I was wondering when I looked at it earlier this evening...
Anyway, about KM: I don't have any first hand experience with it. I know people that do and I've done reading and watched a couple docs about it. Several of the people I know that tried KM had backgrounds in Capoeira and Tae Kwon Do and a couple of others beforehand and they all said the same damn thing: "Holy SHIT, that's rough." The documentaries that I saw compared it to other similar styles and showed the training as practiced in Israel by the military and civilian sector.
I'm sad to say that my experience is all second-hand
. I would love to try it out and get my ass kicked a few times by a crazed instructor who always tells stories about using a KM elbow to difuse a bomb >_< ! (SUGOI O_O) Jk...
I owuldn't mind doing a closer examination of what the USMC teaches, but I'm afraid I'll have to become a marine to do that... and, well, I don't mind the idea of being a soldier in a war, but I don't want to be a bullet sponge n_n;;; .