The David Lo Pan is a RG submission developed by David Callaham from 10th Planet Jiu Jitsu. In the video above Erwann Marshall demonstrates the technique.
It is almost like you are doing a Darce from the guard but add your legs to finish the sub.
I have not had a chance to really work on this setup yet. So many techniques and only so many hours in a day!
Erwann uses an S-grip to lock up the submission in the video. He also suggests trying the technique with a Ball & Socket grip. If you have long enough arms or are able to get deep enough this might work otherwise you'll have to finish with the S-Grip.
