I love that i can create my own character especially a female character but in oblivion & the Fallout series I HATE THAT SLIDER. I adjust the nose & everything else slides,
Its trying to constrain the mesh proportions. For instance, if you have a tiny, tiny nose and you try to increase the width and size of the nostrils, they'd get so big to the point where they'd touch each-other and completely hide the nose tip. Thats just one example of the many things that can go wrong when you have the power to control everything on someone's face.
I believe if you keep going back and forward, between sliders, you'll eventually get what you want...but its doing it for a good reason.Unless your purposely trying to make yourself look like a walking ghoul!
The bone to pick with FNV and F3 character creation is the hair and their textures. They look incredibly illustrated and very muddy. I was very disappointed to see that Obsidian made no changes to the quality of the hair...as I felt Fallout 3's hair meshes + textures were a step in the wrong direction compared to Oblivion.