I am a Poser guy, so DS is not my specialty, but couldn't a Dawn clone of herself be used to create better weight map projections for new clothing created specifically for her? I have heard this somewhere else, but could never confirm if it's true. In another example, when we load a Dawn outfit in DS from a Poser runtime, DS will claim it to be "unsupported", and then proceed by projecting the weights from the figure itself. If Dawn had a clone of herself, perhaps DS could show "Dawn" in the list of supported figures instead of "unsupported", and perhaps make better weights projection. This would be a case where we are converting clothing from Dawn to Dawn, so it's not something rare or unusual.
So these would be 2 examples: when creating new outfits for Dawn, and when converting Dawn outfits from Poser to DS. In both cases it's from Dawn to Dawn, and from what I've heard, Dawn clones would be the better way to do it. Even though this makes sense to me, sorry if I am saying something stupid. I have hopes someone who actually knows this stuff will clarify it. ;p