I don't think it is true that V4's mesh is denser than V3's. As far as I know, the G2 females also have a denser mesh than V4. The way her mesh is organised does not seem to lend itself well to re-mapping, but the way her default UVs are laid out is fairly straightforward, hence we have so many textures for her, including some good free ones. She is a useful girl to have around, but I use her for variety, to prevent my Poser figures looking like they all stem from the same family tree. That probably means my morphing skills leave much to be desired...

Poser 11 Pro, Windows 10

Auxiliary Apps: Blender 2.79, Vue Complete 2016, Genetica 4 Pro, Gliftex 11 Pro, CorelDraw Suite X6, Comic Life 2, Project Dogwaffle Howler 8, Stitch Witch