I found a couple of very small areas of poke-through on the shoulders, when I used WW on ShadowDancer, to fit it to V3, but there was nothing that couldn't be easily fixed.   I agree with everything  Acadia said about WW.   Just for the sake of converting one item from A3 to V3, or whatever, it would be expensive, but you soon get to see the benefit, either adapting clothing to different figures, or fitting unmorphed clothes to morphed figures.   I use it frequently.