Thank you for your response to this thread. I believe you are comparing a sport oriented art or arts, against a self defense based one. In a sport based art, weight divisions are used, and for the most part, you are limited to certain rules, where winning is the goal, because of the competition atmosphere. In a self defense based art, the only rules are, survival of the fittest, and the outcome was not winning, but killing. These self defense based arts, were born out of a people, (China), where they were of slight build, and had to compensate. On the battle field, size was irrelevant, what was needed was a means of defeating someone much bigger and much stronger then yourself. What was needed, was a way to borrow, or utilize, from your enemy, his strength, and size, and then, use it in your favor, while at the same time applying certain techniques that would hasten their demise. This borrowing of his strength and size required body mechanics not found in everyday life. Generally speaking, physical movements for sports are based on those of daily life, such as walking, running, throwing, jumping, lifting, etc. This in turn created a competition mind set based on the fastest and the strongest winning. In the traditional art of Okinawan GoJu, with it’s Chinese influence, the training is different, based on what it’s original concept was, “to defeat, any and all. Let me use an example in hopes of making myself clear. Did you ever see someone that was very accomplished in certain sports, maybe weight lifting, that didn’t appear to be very muscular, but could out lift much bigger people. Or high jumpers, that possessed great spring in their legs. It could be said that they have great genes, but in reality, they posses great bone structure, along with very good tendon strength, along with great body mechanics. In traditional karate, the weirdest of stances, that are found in kata, are abandon by some, as useless, but are exactly what accomplish all of the above. The stances, in traditional kata, are training methods to build these body mechanics. Throw the stances out, and you have sport, work the old traditional kata along with their weird useless fighting stances, and you begin to understand the unique building process devised in those old antiquated days, when it was life and limb.