Tips for Tweening large movieclips for smooth movement?

Hi there!

Ive always had problems tweening big movieclips, motion isnt as smooth as I would like. I usually work in video so I am used to seeing everything precomposed! Are there any tips or best practices I can employ for smooth motion?

Here is what I normally do:

I use the Zigo tween engine from the Fusekit.
Wherever possible, I cacheAsBitmap
I also avoid using strokes, and have solid filled objects.
Set my frame rate at 30fps

For my next project im going to need to recreate a world that rotates, very similar to the Patapon website. The motion on this looks pretty good! How have the achieved that?

Thanks!

Steve