I made a small Poser model. It includes a segment "ray", whose parent is the root segment. In its .CR2 file I accidentally omitted the Weld statement welding "ray" to its parent. When I tried to give "ray" a morph, my Poser 4.0.3 (without PPP) always said that the morph target had the wring number of vertexes, although the number of vertexes was correct. The trouble went away when I went into the model's .CR2 file with a text editor and inserted the missing Weld instruction. Ref. also my previous messages about severe rendering faults happening in Poser when the user follows the Renderosity member Bloodsong's advice to insert extra Weld statements when parts need to touch when one is not parent of the other. It seems that the process of welding shares facilities with other Poser functions, perhaps to save space. It would be useful if the welding process could be made completely independent of other processes, and if the welding process was not relied on to produce values or information that other processes need.