Rob, thank you, at least I know the problem is at my end. It is a collar(s) morph not a hip morph. I made it PBM attached to a null hip morph. This solution is more practical anyway. xrot the hip 90 degrees, do a hands and knees pose, set IK for all 4 limbs and do a short ztrans +/- and you should get what the collar morph does. This way both movements are controlled from the same group and the morph is not a general one anyway. At least now I know how to do PBM.