The Russian Carp is a variation of the Asian Carp choke from Keith Owens new downloadable series: The Art of the Choke found at www.keithowenonline.com.

Piet Wilhelm, black belt under Renato Tavares, shows the Joker Choke with the gi. There is also footage at the end of Piet using it in competition.

Piet Wilhelm, BJJ Black Belt under Renato Tavares, shows the flying armbar attempt into the reverse toe hold. This may be illegal in some competitions