I'm also working on it lately, on the Quartz. This kite likes to overrotate its lazies and backspins which helps a lot. it just needs to go past full rotation to pull back to the fade, which helps a lot as well. It always reminds me of style Debray is flying in that KFX flick, lot's of 1 pop double rotations there.
Very nicely executed in your video, though. I need to work on it a lot more!