Hrms... Okay, here's what happened: The mesh isn't perfectly symmetrical... the same joint parameters don't quite work... I'd actually reccomend reloading the figure. I'm sorry the beastie doesn't perfectly reflect symmetry, but I -am- relatively new at this... Oh, and I noticed his right fin is clipping the neck because of turning his head... his fins are separate parts, and have a "flap" dial to move them further away from the head (or closer) to prevent just this.

Remember, kids! Napalm is Nature's Toothpaste!