I personally don't care much. I used brand new Graupners on my F450 and they didn't help much. The frame is a jello machine, but it's fun as heck to fly so I'll use the Gemfans on it. I'll spend SOME time on balancing them, but a bit of jello is OK in this kind of footage.
I do realize that most people will use these on AP rigs and whatnot. But they'll spend a lot of time on balancing them so they should be fine.