Hey Dave,
The problem is caused by the fact that not each face of the cube is animated the same way. I’m trying to give the illusion that the entire wireframe cube is just one big trim path rather than having an animated square. The stroke travels for instance, two edges of the front facing square and then the top square strokes towards the back facing square, which then completes 75% of its stroke. It essentially looks like one line is randomly stroking along the edges of the whole cube, and because of this, I am unaware of a way to take several layers with keyframes in different places and of different values, and make it look like it is eased.
I realize I’m not explaining this too well, so I have attached a video of my current animation:
10259_animatedpinkcube.mov.zip