Maybe i don't understand your post correctly, but adjusting an existing pose to your liking is much easier and less time consuming then creating everything from zero point, why create such dificulties?
A fair question. The answer is...well...several reasons:
1. We notice a lot of the same poses being used by nearly every game creator on the site. After a while, it becomes visually boring.
2. We reached a point where were tweaking existing poses so much, that there was almost no reason to start with the original pose at all.
3. Existing poses, in our experience, always require adjusting. They never fit right out of the box.
4. Many existing poses just look
wrong to us. Maybe the joints are stacked improperly and the figure looks off balance. Maybe the pose looks normal, but as you study it you start to notice small absurdities (I notice this most with the shoulders as if the creator touched ever single bone except for the shoulders).
5. It doesn't take us long to do a pose from zero. We've spent so much time using the Daz sliders that we fly through the manipulations. The one above took approximately five minutes to set her in that pose.
6. I just feel like we can do better than the existing poses being sold. Call me arrogant, but given the number of adjustments we always have to make to existing poses, I just think we have a better eye for detail when it comes to balance, posture, etc. Are we perfect, absolutely not. Are we better than what's being sold? I absolutely believe so.