I've been meaning to shoot some 30p and put it on a 24p timeline to see how that works. Actually, some people believe if you're shooting 4K, you should be at 60p for the most natural motion. I wanted to try that out as well, since my subjects never move much anyhow. And when I whip the slider around like I do, it's too blurry at 24p. If I move the camera any slower, the caffeine shakes get even worse. Problem is, I ordered an HDMI cable for the Ninja almost three months ago, and it still hasn't arrived, so no 4K 60p for now. With any luck, next week.