I took the liberty of downloading your file from YT. When streamed from my PC to a Sony Blu-ray Player, I could just detect judder on the first lower right to upper left pan, none on the next two, and perhaps just a little on the last. There were never any noticeable jumps or jitters, no tearing–just smooth playback. If you’re concerned you might back off on the amount of zoom or increase its duration, but really, I think it looks quite good, as is. Any noticeable jumps, jitters or tearing are due to poor PC/internet performance.
wwaag