one of my old coaches used to train at ATT HQ in Florida. He used to tell us that there were around 20 black belts on the mat almost every given day. He also said that some random, unknown Black Belts from Brazil used to travel to HQ all the time for some training and smash dudes like Jeff Monson and Thiago Silva. Nobody even heard of them here in US. I bet Black Belt pull is crazy down in Brazil with hundreds of gyms everywhere, we just never hear of them. Think about it, if a person doesnt compete nationally or internationally, u not gonna hear about him, even if he is a black belt, unless he is some famous instructor. And what is the percentage of jiu jitsu practitioners that compete? 2%? 5%?