As does mine coxne. We bring in many other grappling styles in class as well. Just because you have never heard of something doesn't mean that it's no good either.

Indeed, I'm a member of the IMSS, and we have all kinds of styles from Shorin Ryu Karate to Ninjitsu to Tae Kwon Do and teach skills such as Phillipino knife fighting techniques for example, and we all learn from each other and grow better, that is after all what the Shaolin Monastery did, act as a gathering place of knowledge and techniques, adding new styles and growing stronger as it went.