Hey man, Nice video. I played with this position quite a bit when I was training a lot with the Gi.
If you want more ideas for it, I picked it up from Roberto 'Cyborg' Abreu. I think he calls it double leg on back, or Legs on back guard and considers it part of his 'closed guard' game.
https://www.youtube.com/watch?featur...diJWXCxyA#t=69