joeyb - I believe the eve figure seperates the chest into two 3 regions making left and right regions part of the collar bones. It still uses the original p4 mesh. This mesh is the standard p4 mesh only it has twice the polygons around the bs. Kind of like adding a higher poly count face to p4 fem which is what Vickie is. This way the bs can be modelled better without huge jagged polygons. Use it only if you need higher detail in the fem chest area.