I'm working on Unity 5.5 inside OVRCameraRig in the UpdateAnchors function: Changing the parameters or just bluntly commenting all positional and rotational code in that function does not make a difference in rendering. (i can see the cameras in the IDE changing location when i change the code but the rendering seems to be taken care of by some other camera. (unity's native VR implementation?)
Long story short, i can't seem to change head,neck modeling for some exotic feature i want.