Nice effort, guys! Really cool.
"- Animations should have frame amounts which are powers of 2, NOT multiples of 2!"
Ahaahh . . . so if you have a variety of animations that you want to stack into a single scene, then them all having a frame count that corresponds to a "power" of the same number, then they'll seamlessly integrate . . . like
this one by B.O.B. . . . is that the rule?