The majority of guys in my motorcycle club (Knuckle Busters) take this and a few are black belts. While I have been planning on taking BJJ and/or muay thai, they have been talking to me about going to go train with them in sansoo. My question to you all is this... Is this really, truly effective? I know it's basicall chinese streetfighting, but I already know how to streetfight rather well (well, american streefighting that is ). What'cha guys think?