Slow Motion clip with the 6D
 

Shot @ 720p60 (I wish there was a 1080p60 but there isn't)

Here's the thing, in this video clip, the shutter speed was mistakenly kept @ 1/60th. Forgot to set it higher. So as you can see, depending on how fast your subject moves, even a slower shutter will work out just fine. :-)

Most all of this video is slowed down 50% and conformed to a final 720p30 size and framerate.