There is only one guide for this currently and I tried that advice for almost the entirety of the campaigns (with DLC) and never once got a perfect on a jump and only got perfect on the other actions about 3/4 of the time. On the very last day of the last quest, I tried something different and got it. I don't really feel like testing this method to make sure it works, but please comment and let me know if it seems to be the way to go. If not, I'll delete the solution.
So the first time I got a perfect jump I actually jumped like 3 inches, compared to the, I don't know, 1+ feet I was trying to do, so it seemed like that solution was immediately debuked. The basic strategy is to act as quickly as you see the prompt. I remember doing that early and I would hit the floor before the jump and would fail it, but there must be a sweet spot, or my kinect/xbox was just messing up (like it seems it often wants to do). If you are failing over and over at the jumps (my ducks and strafes were more consistent also), try to act quicker while also getting the timing right.
I'd love any info on how I could improve the guide.