I was advised that I should drain one breast before offering the second breast but I'm not sure when I've gotten it all out on one breast because if I squeeze there's always a little that still comes out. How do I know if my newborn has gotten to the hind milk? It's not like I can see the color like that article suggested that is posted here. And is it not good to do one breast at a time for feedings? What can this cause? Please help.