"Wouldn't that be a problem?  Someone said for SubD to work meshes should be 100% quads."

The "all quads" rule is just for gaming avatars.

Firefly doesn't care about quads, tris or poles. If you know how, you can even get away with n-gones.

And the new Poser SubD doesn't mind tris, either. It hates unwelded vertices, though.

 

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Glad to see a "decent" polycount on Dawn*.*

While using SubD won't hurt to achieve 100% smoothness, that should be enough polygons to do some nicely detailed bodyshapes just by sculpting the mesh.

My own 3rd Gen hybrids are 46177 polys and I'm pretty sure I could have savely reduced that polygon count by a few thousand polys, but I didn't want to loose direct compatibility with the default 3rd gen figures.