deformer problem
 

I'm trying to animate a stingray. I've used a bend deformer to flap the fins (like wings) and 2 wave deformers to get the overlap as the tips bend and edges ripple slightly. I then parented all the deformers to the mesh, so they will move with it.

It works well enough for what I need it for except for one problem. When I move the mesh up or down, even though deformers move with it, it acts like it's moving around independantly from the bend deformer, and warps. I've included some images so you can see.

So, to get to my question, how can I constrain the deformers to the mesh correctly, or is there a way to bake deformer animation like you can dynamics maybe?

group them, that shouldnt be happening.
In any case... id use joints lol

I tried grpuping, it still happened. Tried constraints too. I guess I'll just have to use joints. It sucks, cause that worked pretty well.