Most martial arts dont fit together in an easy fashion. You take the circular hands of kenpo Karate and try to put them atop the linear stances of hard core shotokan, and you are going to get an uncoordinated mish mash. Or, the fast and hard jabs of boxing might fit with wing chun, but the round house power punches dont fit at all. And, occasionally, there are going to be arts that do fit together easily. You can put aikido together with the martial arts of pa kua chang, but it is going to take logic and discipline to categorize individual techniques. And, this leaves the developer with a problem of how do you teach the resulting art without confusing. That all said, I was taking an Aikido class one day, I was a mere beginner in that art, though I had seven years of kenpo and karate and a bit of wing chun. So they asked me to partake in randori. which is the freestyle aikido employs to train students. And, it was a sad experience, at best. I didnt want to give them my punches, karate had taught me to lock my stance down, and the result was that nobody could throw me, and the give and take of the randori exercise wasnt working. I hold fault with no one, it was mixing claymores and corkscrews, and one could argue they should have been able to make their art work, but I should have been able to work with them. Interestingly, after class things became interesting. One of the higher ranked black belts, name of Paul, came up to me and wondered where the breakdown had been. Lower black belts kept their distance, but he wanted to learn, and that was the mark of a higher level belt. So I told him how I had been taught to lock down my stance, and we looked at that in connection with aikido techniques, and how things could have been different. Nothing seemed to fix the problem, until I asked him if he had ever heard of sticky hands. When I demonstrated the drill to him the lights began to go on. Wing Chun, you see, has stances that are higher and more mobile, and we spent hours figuring out how to get the feet to go fast enough to keep up with the aikido centrifugal action. Slowly, we figured out how the feet were supposed to cross or circle in time with the attack. We began to explore higher techniques, Paul excited because of all he was learning, I was grinning because I was getting a super advanced lesson in higher Aikido concepts that the other fellows in the school, the lower black belts, would have died for. It takes an extreme common sense to put arts together, and very few people are successful at the endeavor. I succeeded wildly, and this because I always seem to run into people that are willing to share what they learn. If you think you know it all, if youre proud, if you think you are better than other students, then you will never open your mind and be able to absorb all the wonderful truth that flows so freely on this plane of existence. Al Case has studied martial arts for over forty years. He has written for the magazines and had his own column in Inside Karate. He has developed the science of Matrixing, which enables an artist to de-corrupt his art and return it to original workability. You can get a free ebook about his method at Monster Martial Arts.