Alriiiiiiight, I'm sure this manga is as legitimate as Hickson's 400-0 record, but how does the old saying go...? Never let truth get in the way of a good story. Now whether this is a good story or not remains to be seen, I suppose, but it must have had something to last almost 20 volumes.
Speaking of Mr. Gracie Hunter, we never did get Rickson vs Sakuraba... that was the grail during the kakutougi boom. By that time, fighters were wising up to BJJ, but I think as, uh, maybe Royce said, they all had to study it first.