Uh... excuse me... but J. Paolo uses it all the time in BJJ. He was the Mundials champ in his weight class in 97 or 98. It is used in BJJ. I learned it from Paolo and I get it all the time from north south. The setup I learned from him was to go for the kimura from north south. If the guy is defending his arm well... lean forward, slip a leg underneath his head and fall to the side, scissoring your legs. I've been able to finish lots of guys with this move. Alternatively, you can always transition to a regular arm bar from that position if you're having trouble finishing.