It may look like all I've done is fuck up the UV map, but I have actually achieved a meaningful improvement. I fixed the symmetry of the boobs, so mesh symmetry actually works properly.1 Besides, the UV mapping was already sketchy around here, so it's not as much of a pain as it may have been.
I think it does mean we'll have to redo the weight painting though. But that was a given with the stuff we're adding anyway.
Our current goal is to do everything that really changes mesh, then worry about UV mapping and weight painting.
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From the looks of things, the base accidentally got a teensy smooth on one breast before getting published. It's fine, even with the wireframe on it's near-unnoticeable.