Instead of asking this questions on diffirent threads, i will combine them into one... 1. What is catch wrestling, where are the locations of its school? 2. What is the diffirence between submission and catch wrestling? Who is a famous catch wrestler? 4. Has anybody taken Combat Submission Wrestling and what is your opinion. 5. I read that a black belt in judo is equivalent to a blue belt in BJJ, why is that? I assume in ground grappling only, 6. A blackbelt in BJJ, what is he/she equivalent to in Judo, as far as the throws, leg sweeps, and takedowns. 7. Is Fusen Ryu Jiu jitsu the original jiu jitsu. Do they do a lot of ground grappling. 8. Of all of the jiu jitsu(except bjj), what jiu jitsu style concentrates on ground grappling or at least half of its techniques.