We had a two hour BJJ seminar at the dojo yesterday given by some guy from Reading (I think - may have been Swindon). Not bad some interesting info and some techniques which might be useful one day. However my conclusions: a) I still don't see BJJ as a primary self defence, I don't want to be rolling around in the street or on the floor of some bar. Although it might be unavoidable so BJJ might make a good secondary art/sport. b) Given point "a" the ground fighting I already learn in JJJ and Krav Maga is probably already sufficient assuming I never end up fighting a BJJ expert. c) If I ever did end up on the ground with an expert, BJJ doesn't seem to address a lot of techniques which are available. I.e. small joint locks, pressure points, gouging, biting, etc. The teacher (who was only a white belt) left us with the suggestion that we get together a group and practice the techniques he'd shown us and "explore rolling together" and he could come back a few times a year to add techniques. I'm not overly tempted for the reasons given above but if anybody who's got more experience of BJJ thinks my reasoning is wrong I'd like to hear what you have to say.