Taking a traditional martial art and giving it a contemporary spin is nothing new, but I'm not sure about this one. Dennis Hannover is a Jiu Jitsu instructor that has a huge school in California as well as other places around the world. http://www.dsjj-usa.com/index.php?con=home He calls it "survival" jiu jitsu, but isn't it the same as saying "combat Hapkido" as opposed to just "Hapkido"? Anyway, he emphasizes that his curriculum is about actual survival, real life situations, and that his brand of Jiu Jitsu involves moves from Karate, Judo and Krav Maga. What do you think? Legit?