@trav, diolma: Can be done. My hybrids work that way (no, I haven't uploaded them to freestuff yet, they're not good enough, just "proofs of concept".
If you make a conforming figure with dynamic body parts, the rules of play required by the cloth room are as follows:

• the dynamic parts must be "end parts", they can't have child actors;
• the dynamic parts must NOT have an existing body part name;
• the vertices of the dynamic parts that coincide with vertices of conforming parts (the vertices that would be "welded" in a conforming figure) should be assigned to the constrained group;
• and the conforming parts of the clothing figure should be set as a collision object too.

As an aside, it's also possible to create the dynamic parts as parented props - parented to a body part of the conforming cloth. Actually, the setup is easier this way. I have attached a skirt to BillyT's conforming waist nipper this way, and it works perfectly.

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