If you read nothing else, note this: 10th Planet Jiu-Jitsu in Springfield, Massachusetts is an amazing place with wonderful people and a knowledgeable instructor.For those who are unaware, 10th Planet is the name of a revolutionary jiu-jitsu system created by Eddie Bravo. From the beginning, Eddies goal was to improve the bottom game in MMA. He was tired of seeing world class grapplers being taken down and pounded into submission. The first thing Eddie did was ditch the gi--a kimono worn by traditional practioners of the gentle art. Instead, he developed a system of clinching (i.e., using overhooks and underhooks) to control the opposing combatants posture and work for the submission. No longer would grapplers used to engaging in a clothing tug-of-war battle on the mats be frustrated in their attempts to control shirtless, sweaty opponents hell-bent on unleashing a furious barrage of strikes upon then. The 10th Planet Jiu-Jitsu system, which is still developing, has transform the way jiu-jitsu is used in MMA as well as the sports and self defense aspects.The Springfield location is truly a blessing to this area. I began training there with no prior experience, and everyone welcomed me in right away. I was blown away by how kind everyone was. Even when we were rolling with full intensity, most people would explain to me what mistakes I was making, allowing me to progress much faster than simple trial and error would. And the instructor, Pat...well, put simply, he is the best person someone should train with if he or she lives in the Springfield area and wants to become skilled at jiu-jitsu.In short, training at 10th Planet Jiu-Jitsu in Springfield, Massachusetts is an extremely positive experience that will leave you coming back for more. I highly recommend it.