I tried V4-WM. It was a huge improvement over V4 in many ways, and in some ways, not so much.

The recent addition of a batch of V4 improving morphs has made the the non-weight-mapped V4 quite a viable contender. Bends are vastly better, and there's no need to convert clothing.

V4-WM, unfortunately, came out about a month or so too late (after all those lovely V4 fixes). Plus the added step of converting the few conformers I do use makes me less inclined to try. I'd use her, but I'd still have to fix up her some of her joints in post or with morphs. So why bother?

Edit to add:

I guess my point is that I don't think my apathy is uncommon among buyers in the marketplace. And if vendors do not detect an enthusiastic market, they're not going to invest the time into making products for it.

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PoserPro 2014, PS CS5.5 Ext, Nikon D300. Win 8, i7-4770 @ 3.4 GHz, AMD Radeon 8570, 12 GB RAM.