By default, Poser saves the OBJ within the PP2. The next step is to convert the PP2 to an external call. (Or use an existing external call PP2 and paste in the new OBJ name - like Jim Burton suggested.) If there aren't a lot of morphs, the file is then small. The geometry can be used for morph stock. If you change or remap, give the new OBJ version the name and location of the extisting one and the PP2 will use it. The geometry does not need to be in a Runtime.