BL42, the reason I'm making a big deal is that D1 has trouble sleeping anywhere but home. All the research I've seen indicates that it's not recommended for under 4. She will have issues transitioning when she first moves out to Mom. Maybe as a starting point I can try daytime naps. I do feel guilty asking for 50/50 knowing it could cause emotional harm down the track. It's not out of fear of STBXW, or fear that I'm not capable. It's what is best for the child.
I understand your point and I'm glad to hear that it works for you. I'm open to changing my thinking on this, if I'm missing another pov.