Here's another clip of Lloyd Irvin purple belt, Ryan Hall. It's a no-gi match this time.
I'm not a big fan of the "ultimate stacking" approach that Ryan does sometimes. I saw Jeff Glover end a decision at the Professional Submission League event the other night with the same technique. For me, jiu jitsu is about dominant position and submission, and the "ultimate stack" with the legs thrown completely overhead just doesn't seem like a position that works outside of the most limited aspects of sports jiu jitsu and submisson grappling.
Besides, I couldn't do it if I wanted to do.