Have you ever set up a wiggle expression, gotten a result you liked, and then added another layer into your comp - only to find it changed the wiggle animation? Or maybe you changed the layer order and your wiggle animation changed? In this tutorial, Aharon Rabinowitz, tells you why it happens and how to stop it dead in it's tracks!
OK, Maybe that was a little over the top. But he'll show you how to keep it from happening. And he'll show you some creative ways to use AE's P.I.T.A. behavior for your benefit.