no....as long as you stay under 250 shutter speed its fine...over that they stop or bend.... i rarely use the auto focus... but the OIS sometimes causes problems so i been keeping it off as much as I can.
Nice work! I have an HPX250 too and really enjoy it's abilities. I noticed that at :47 sec the embroidered logo on the dudes shirt vibrates in a strange way. I saw something similar on the edge of a glass ashtray I was throwing keys into for a slow mo test. At the time which was 2 a.m., I assumed that it was the compact florescent light that I used. I was just trying to learn how to get the camera to shoot slow mo. Later, I shot all day slow mo 720 without any weird vibrations. Is that vibration on your original footage?
Thanks for posting!