For those of you who've filmed in 4k I have a question about your settings. The industry adage is to have you shutter speed set to a function of your frame rate, so 24 FPS should be about a shutter speed of 50. Auto setting always seem to have a strange shutter speed, and leave me with rolling shutter artifacts and footage that is less than smooth. Also, the advance settings menu on the app takes up a large amount of the screen, and when I close it, it defaults to basic setting. Anyone have experience and suggestions?