One time my Spark came back with a bunch of ants crawling on it, because I had unknowingly launched it near a anthole. They'd be all dizzy after that ride!
I'd like to see the "stress test" mission after the video has been put thru a wee bit of stabilization. Could you make that video available on Google Drive or similar?
Also, the "stress test", while of course revealing, really isn't the way a person might get a series of shots... The movements could be much less demanding and still fall well within the genre of "cinematic"... So maybe the waypoint feature is more usable than the "stress test" seems to indicate.