Ben, the pictures you see of my car when it's really rolled hard are possibly more a product of the courses we typically run on. Instead of large open sweeping type of corners like you showed in your video, we have mostly short chutes, hard braking and super tight corners.
This picture was taken in the middle of a large high speed sweeper at Gateway.
And this picture was taken at the end of the course at Gateway under a hard braking tight type of corner.
It might just be that it appears that my car has more diagonal roll once the back is up in the air under braking.