I was just wondering what the TKD folks think of studying a combination of Tae Kwon Do and Brazilian Jiu Jitsu. I have a 7 year old son who has been studying TKD for 1.5 years and he just received his blue belt. He has also been studying (Gracie) Brazilian Jiu Jitsu for around 5 months and just recieved his grey belt (advance white belt for children as there is no real grey belt). He loves both disciplines and especially loves TKD sparring and BJJ rolling. As part of his TKD tournament, they have a Sports Jiu Jitsu event in which TKD-style stikes are allowed until the clinch at which point no strikes are allowed. He dominates all the kids in his size/weight class and often the kids much bigger than him so it seems to be paying off. I'm thinking that the Japanese Jiu Jitsu they teach as part of the TKD curriculum is "watered down". Any thoughts?