First off, I'm sorry if this topic has been posted before. I did a few searches and couldn't find a prior thread dedicated to it. Anyway, for those who have read it (whether you practice judo or bjj), did you find Dave Camarillo's Guerilla Jiu-JItsu book useful? If so, what aspects? I have practiced judo for 8 years now and have been visiting a few bjj schools recently and am considering cross training if I can find a place that fights with me. I saw an ad for this book recently in a magazine and was wondering how many of you have used it at all or if it was even worth the money.