If you haven't tried this yet, play around with it. My D7100 has only 720P 60 fps, this plugin renders out to a 1080P after you set the parameters to a very good 1080p, even extremely clear slow motion. The only problem I see is that I no longer have an excuse for wanting anything but a 4K camera with my current stuff.

Really, Movie 13 if you take the time has more power than most of us can use.