i practice mabu training alot. i like it. it helps strengthen joints that are weak and give you soem ncie muslce and conditions the muscle. also more importantly it will make you have a strong stance when done right. now is mabu training alone important? yes, but more important is the mabu to gonbu training and other pivoting exercises with stances, so you learn how to use your twisting power and how to connect everything for striking. total all in all. i spend about 4/5 hours a week doing the stance training. dont just single this training out for learning to use your pivoting, these are mostly strengthen enxercises. you actually have to hit bags too in your fighting stance too, so you learn it that was too.