Very interesting! I was not aware of the speed graph, but that sounds exactly like what I’m trying to do. Would it be possible to incorporate the speed graph on a Null Layer with Slider Control, so that I can speed up or slow down multiple other layers with one change?
Also, now that I’m able to get rotation to behave how I want, is there a simple way to do the same with Wiggle()? I have a couple layers that wiggle their rotation with:
wiggle(1,360,0.5)
…but I’d like to slow that down too. Similar problem to simple rotation: once the timeline gets to the slowed down keyframe, the wiggle slows down appropriately (I change the 1 per sec to 0.1 per sec in the wiggle expression). But between the 1 and 0.1 keyframes, the wiggle goes crazy, and doesn’t progressively slow down.