Rhino will change the vertices structure when loading a obj file. Try this: 1. export ur obj from poser 2. convert ur obj to rhino 3dm file by a tool call objto3dm, which can be download at: http://dave-l.wooyah.com/grafix/index.php?page=objto3dm 3. mod ur model, export to obj. 4. load ur modded obj as morph in poser details here: http://www.morphworld30.com/tutorials/rhino1.html Mod only 1 part of the body each time, since rhino changes the obj file structure, u might need mod the obj file exported by rhino sometime. Good luck.

Does it mean A3 and V3 has the same vertex structure in head? Otherwise, the head cannot be the morph for each other.

Try DIY the neck with rhino3d.