The first thing about generic animations, is that you must leave out certain things. I usually delete finger animations from an anim file for instance, when transferring from one character to another. It is easier to make new finger animations than to fix the ones that come across all messed up. The other problem is not so much the joints, as the addition some figures have of different body parts. The millinium figures have more bones than the Poser 4 figures, so all animations passed between them will be messed up, but if you include only the main motions, on the common elements, it is easy to add the secondary motions.

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