Well I'm currently train under 5 degree black belt Waldomiro Perez Junior in HB and under Baret Yoshida during the school year in SD. Any1 know any bio on them and how good they actually are? I know Professor Perez use to be Rampage and Tito's BJJ coach and Yoshida won ADCC in 2009. But how do I find out more bio as in who they got their black belt from and etc. I haven't ask them cause I don't want to offend them by saying something like "how good are you actually?"