First of all, I'm starting this discussion in reaction to Flashlock's recent threads regarding BJJ as an "ultimate" martial art. While I love BJJ, I do not believe that is by any means a foolproof fighting system, and wish to discuss the problems inherent to it. Personally, I can think of three. The most obvious limitation, of course, is that it is a grappling-only system. The lack of any striking is a hindrance to a pure BJJ-ist. However, we all know that, and I do not think it's really an issue for discussion. Thus why we see so many people cross-training in BJJ and a striking art to round out there skills. Second, the absence of takedown training in many BJJ schools. I recently joined a new BJJ club for the summer (a private one associated with the U of M club), and was disappointed to learn that they started rolling from their knees instead of their feet. I've seen this at play in tournaments, where, as one of my assistant coaches put it: "there are only two takedowns in BJJ: you either shoot for a single leg if you're a wrestler, or you pull guard if you aren't." Obviously, this is an exaggeration, but the weakness of the takedown abilities of pure BJJists strikes me as a fairly glaring flaw. After all, if we want to finish a fight on the floor, don't we have to be able to get their first? This, too, seems to be addressed at least by competitive BJJers, by cross-training in either judo or wrestling. In my case, it's Judo. Third, for as submission oriented as we are, it seems that BJJ schools in general underestimate the role of leglocks. I recall the first time I fought someone who was skilled with leglocks... it was akin to the first time I fought a good grappler as a pure striker. I was simply unable to keep the fight where I wanted it.... I was used to traditional BJJ positioning, and this guy kept wrapping himself around my legs and tapping me out. While I understand that leglocks are generally riskier than armlocks, as they don't maintain as secure of a position, I feel like they deserve more respect than they get. Anyways, that's my initial take on the problems of BJJ as a martial art, and specifically it's problems as a grappling art. I'd like to hear every one else's opinion, especially those who have more experience with jiujitsu than I do.