Great  Forum.   I don't know... I really would say it's the school.  In my area, the toughest school I know is a southern praying mantis school (the teacher is amazing, and the students can really fight).  However, I know a few guys who are really excellent martial artist and are fluent in karate.  The person I train with, is affluent in Shorin Ryu Karate and is an amazing fighter.   In short, I think that there are a lot of martial artists who are part of schools who are not teaching well rounded street fighting methods (such as sparring with face hits, and fighting with multiple opponents).  I know some people may call this training a little dangerous, but with the right type of equipment and proper conditioning, drilling, and speed (our sparring and fighting training started out slow when I began, and then sped up through time), it's really not so bad. Personally, I have found that this type of training has really helped me in being able to use my techniques in unpredictable situations.