I've been doing TKD for nearly 28 years and attained my 3rd Dan at Fort Bragg. The Gracies came in and opened my eyes to a new world. I rolled for years after using a mix of Gracie and TKD along with a few personal favs. Nothing and I mean NOTHING quite compared to the first time I tried 10th planet! I added the dvd series quick fast and in a hurry. I may not be affiliated yet but all my students LOVE the "new" style. Every class they beg for more Bravo!