odf > Quote - Looks good so far. But why would you make a morph to move the jaw? It's a body part, just rotate it.

MikeJ > Quote - Well because I wanted to make a FBM out of it to only have to turn one dial. Yes, I think you can slave the lower jaw rotation to the head morph, but then again I don't know how to do that. ;-)

I don't think stretching would be a problem as only the very bottom of the jaw would stretch, where it would be well out of sight, and the stretching would be very mimimal. Below is the text of a pz2 that will slave the xrot of the jaw to the morph. To work, either the internal or dial name of the morph must be exactly "MouthOpen_03_Head". Of course if you want to use a diffrent name, you can edit the pz2. The slaving should work irrespective of whether the morph is expressed directly from the head, or via a FBM.

{
//MouthOpen_03_Slave-MJ.pz2
//For this file to work the morph needs to be named EXACTLY "MouthOpen_03_Head" (either internal or dial name).
version
        {
        number 3
        }

actor jawLower
        {
        channels
                {
                rotateX xrot
                        {
                        valueOpDeltaAdd
                                Figure
                                head
                                MouthOpen_03_Head
                        deltaAddDelta 9.000000
                        }
                }
        }
}