By importing the meshes into 3ds Max and centering the object on the pivot point i was able to fix this for the meshes i work with in Quixel Issue is now SOLVED!
I can link pupil direcly to the head and move it's pivot to the back of the head, then aplly lookat constraint to it, but then pupil's movement won't be limited by the face plane as it should be...
Pivot - Thanks! I went ahead and removed the image. Thanks for the comment! Shendoo - Thank you! I love Scribblenauts so I take that as a big compliment.
The usual way (easily scriptable I reckon ...) would be to redefine the axis/pivot orientation of the main curve, then use parent mode to place the control points easily.