Roxie & V6 are both SubD meshes.
All that V6 does ,Roxie could do also.
So no ,I don't get no big picture of why Poser needs any other mesh.

But if you want a 3rd party mesh ,there's Dawn she can morph in to any thing also.
Even Roxie or V6.

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The Artist that will fight for decades to conquer their media.
Even if you never know their name ,your know their Art.
Dark Sphere Mage Vengeance