there is also the point that BJJ really stretch training time before black belt. (15 years ?) There is blue belt, blue belt stripe 1, blue belt strip 2, ...
You see blue belts in BJJ running schools. I am not even sure there is a rank beyond "black belt", though probably something.
There is BJJ teacher who teaches classes on alternate nights where I teach Aikido, Leonardo Xavier, http://www.leonardoxavier.com/
He is in the only black belt in his organization so far.
He has two schools in Oklahoma associated with him (neither has a BJJ black belt yet). Could that be who the school is associated with ?
He is polite and friendly and clearly has nothing to prove.
I like this quote,
"BJJ is Aikido on the ground" -Anthony
some truth in that.