bon- like i said, i have YET to see with my own two eyes, but i didnt say its non-existent. i jus agree that its too commercialized and people have a false misconception of BJJ/GJJ being the "greatest undefeatable MA!" people have a false misconception that UFC and PRIDE= streetfighting. the only thing that equals streetfighting is streetfighting. contests have rules and rules put limits on fighters. real streetfighters don't fight limited, though they do try to fight with compassion. but when it comes to life/death situations, preservation of self automatically kicks in. yes, it is stupid for ANYONE to go to the ground w/ multiple attackers (i hear/see way more multiple attacker situations than i do one-on-one's btw.) BJJ in that since is use well when breaking arms, legs, using as sheilds, etc.. as u said...but in response to ur question, plenty of systems are designed to be mobile enough to deal w/ multiple attackers. as a matter of fact, most systems i've seen are designed specifically to deal w/ warlords attacking villages and such and for martial warfare, so of course expecting multiple attackers is a no brainer there. DON'T misunderstand me, i have great respect for BJJ as i have repect for most every art. but i truly think its goin off a limb to say that it's the best one designed. jus my 2 cents.