Hey, Rob, out of curiosity, I noticed that when she is standing, the back of her skirt seems to be intersecting with the back of her left leg. Is that the case? That might be one reason why your sim took an hour. I also have to agree a bit with bjbrown. Of course I've never actually worn a skirt before, that tight or otherwise, so you might confirm this with a woman, but that skirt is rather tight and would probably benefit more from conforming than dynamics.