Quote - 3) Motion integration: It sounds simple. Just glue a special prop on and be done with it. Doesn't work. The whole pubic area is elastic, and deforms significantly. 

Well, that's easy to solve, have it made as a conformer rather then a parented prop.

or:
In DS, you can do a geograft.
In Poser, you can take advantage of geometry switching too.

 

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Renderosity Store  Personal nick: Conniekat8
Hi, my name is "No, Bad Kitteh, NOO", what's yours?