Ok, sure thing! I see where you're coming from now, as they say. In fact the only thing which makes the current mapping impossible to use (in my opinion, and I only do a little texturing) is that the maps are all stacked on top of each other, so it's impossible to get a useful template for the sweater. For the skirt, it's easier since the groups correspond to the two parts which are overlapping, so templates can be derived from that: one for the waistband, and one for the skirt. If there is some way you can supply templates for the sweater, or make it easier to select the different pieces, then there may be no need to remap it. How were the maps made in the first place?