"Ground looping at warp speed" Just think of the applause from the onlookers. LOL
I would be really concerned if the belly of the plane was not black. With the introduction of the nitrous you also need to introduce additional fuel to burn with the oxygen. The black is indicating to me that he is adding enough fuel to stay away from leaning out the mixture and creating another big bang.
My pocket book says stay away from that much fun.