OK, it's me again... Can someone, please, tell me what the heck are those strange "appendices" popping out of this poor girl's arms and legs?! She's a figure made out combining the upper body of Vic and the lower of Eve. And even worse happens with the hands. Except that, evrything works fine (posing, scaling, etc...) I thought I did everything right... HEEELLLLPPPP!!!! P.S.:it happens also when I simply switch heads between figures.

Joint parameters look wrong. I've been struggling with JZs lately making clothing items for Vicky that are fairly non-standard. I'm no expert, but it looks like the inner and outer spheres aren't encompassing the whole figure element. For instance, take a look at the lShldr and rShldr JZs. I bet anything that the parts of the shoulders are OUTSIDE the innerMATsphere, so when you move the shoulder, the part outside the sphere stays put in space...and Poser interpolates between the stationary part of the shoulder and the part that's moving. Thus, stretching occurs. Somehow the Joint Parameters look like they got skewed. Perhaps in combining the figures you're using joint parameters that aren't compatible.

You have vertices outside of a spherical falloff zone in the JPs. Enlarge the SFZs to encompass the missing parts.