Pat Bull's story about different cream content and pumps used at different times may have created an expectation that is faulty. We need to remember that cream levels vary in a diurnal rhythm-like pattern throughout the 24 hr day. Thus it is possibe that the changes observed by the nurse were a reflection of that INDEPEDNENT of the pump the mother used. Def. of LC service: "We are all faced with a series of great opportunities brilliantly disguised as impossible situations." Kathleen G. Auerbach,PhD, IBCLC (Homewood, IL)- [log in to unmask] WEB PAGE: http://www.mcs.com/~auerbach/lactation.html