Deformation on lower jaw rig

[csaez]

...cause the controller are already parented to the nulls which are cluster constrained to the mesh, how can fix that?

The static kinestate has to point to the global kinematics of the object that represents the dynamic 'binding pose', but it can be anywhere in the hierarchy! (not necessarily the parent).

[hidalgo]

i guess i am doing something wrong then, cause if i take the controller with the static kine state and parent them to the "group" controller they go out of theyre original position and screw the mesh...

[csaez]

You can parent a ref null to the constrained one and use that as target for the static kinestate, that way you should be able to tweak the binding pose

[hidalgo]

actually i did something different, i have taken the nulls with the kine state and parent them directly to the group null copy/pasting theyre original position into the new group (cause they where switching to the zero point of the newly group) they keep they're original position that way... thank you for the tip