Here’s one example that I could find why gender specfic base is preferable.
I loaded Genesis with V4 and M4 shapes, pose them so the bones are pretty much aligned between the two and then move them side by side. I then dial up the Heavy morph on all figures (Genesis V4 & M4 shape, V4 and M4). Genesis is the one on the left and Gen4 figures on the right.
Genesis Heavy morph is unchanged, I only switch on/off the V4 and M4 dials. The first images is Genesis V4 shape and V4. The second is Genesis M4 shape and M4.
It’s clear that Genesis V4 shape don’t work well with the Heavy morph, since it’s most probably is sculpted with M4 (or at the very least, a male shape) in mind.
There are fundamental differences between male and female bodies. Skeleton is different, particularly for the pelvic area. Fat distribution are also different. You can make adjustment morphs to account for a different base shape (in this case Heavy for V4 shape), but it adds unnecessary bloat to the figure.
Plus you still have to account for any differences between the skeleton once you pose the figure.
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