How much do you guys think you can improve your game through simply watching videos (and/or reading technique [Saulo's Jiu Jitsu University, Royler and Renzo's book, etc.]) as opposed to learning at school? My question is NOT do you think DVDs and books can teach you jiu jitsu alone (really, we don't need that argument again), but what I'm asking is: To what degree, or how much, do you think that watching MGinAction or Draculino's videos, etc. can help your game, when combined with the usual going to class, drilling, rolling. Do you view the studying of technique when you get home as equally important? Only partially important? Not at all? Hypothetically, it would seem that studying technique constantly could help your game massively, but rolling is still the key to implementing the technique. If so, how do you think you can maximize the learning aspect? What do you do that you find maximizes your performance from watching the videos or reading the book? Taking notes? Etc. Apologize for the long read; eager to hear your guy's thoughts.