Quote - If you apply upright sexy poses to V3, she looks good and realistic BUT one major problem i have noticed is if you view the character from the rear.. and specially if the pose is one where the character is bent over alittle. The buttocks are SOOOO UNREALISTIC.. The Mounds of the buttocks are too narrow.

One way to fix this is to Set Hip XScale to about 120%. Looks great for the back view BUT then if you keep using v3 with this hip change for shots of figure standing up right and from the front, she's disfigured and doesn't look good..thus for animation, it wouldn't work. The only time Xcale 120 looks good is from shots from behind( non animated) , where you see the character's buttocks. 

Here is a picture of the really narrow Buttock mounds that most Poser females, including DAZ ones have. Not realisitc at all

Is there a fix for this?? Did DAZ do anything about this for V4? I just have  v3 but from all the previews i've seen of v4, it seems v4 has the same problem.

Couldn't, during an animation, you just change the hip scale from 120% to 100%,
depending on the position of the figure?  Morphs can be animated, just like positions.