No, it's like a kimura with the legs that can be setup from the crucifix (when they are on all fours, not rolled to your back like with Gary), but you finish it from reverse kesa gatame (or twister side control if you're so inclined) after some rolling.
It might be better named as "inverted omoplata". That name seems to make more sense to some people. It is "reverse" to the normal omoplata in that you end facing their legs with them on their back, while a normal omoplata ends with you facing their head with them on their stomach.
The arm should be trapped in the bend of the knee. But from experience, I've found you'll sometimes finish it with your legs figure-foured, but this is usually because they are escaping and you're trying to tighten it up quick. The figure-four usually makes it attacks the elbow directly instead of twisting the shoulder.
This photo will clear up how it is finished:
Eduardo de Lima (the black belt doing the move) has his left elbow on the mat in their left armpit, with his chest pinning them down. He's basing with his right leg as he brings his left leg back to twist the arm and crank the shoulder. The motion with the legs is like you are doing a technical stand-up (bringing the bottom leg under your butt).
I got this photo from one of the old galleries on my
BJJ school's site. I'm going to get with my instructor and see if he'll put together some photos of this move for a technique section on our site (along with some other moves from the crucifix).
Lagarto gets one in 101 Submission Volume 1, and Saulo gets one on Levine at the Pro Am (like I said before). Nino Schembri almost finished Margarita with a
flying reverse omoplata when they fought. Gustavo Dantes shows it in his omoplata DVD as well, and even Roy Harris has it in his Takedowns from the Knees video. Jean Jacques shows it as his first attack against the turtle in his book Black Belt Techniques. Just the other day I found a 9 second clip of one on some school's website.
I've been experimenting with it a bit and I've found a few ways to set it up from twister side control and such, but none are as solid as setting it up from the crucifix. The positioning and angles are too weird otherwise.
There is a LOT more to the move than what I've explained her, and I still haven't even explained how you could go from the crucifix on knees to side control
and get the lock (it's rather involved), but for that you'll just need to ask your instructor or wait until I get mine to put it online.
