I can get SILKY smooth slow-mo on my T2i, using 720/60P setting, and dropping it into a 24P timeline at 40%... but when I do the same for GH2 footage... its not nearly as smooth!
If I'm going for slow-mo, I always conform it in Cinema Tools. I've never had luck getting anything smooth from retiming in the timeline. At least, that's my solution with Final Cut.
