my daughter had the birth of mam bottles and I must say that initially it was fine but after a while she was crying during and after suckled I wondered what was happening. pacifier and stopped his flow too slow for it even after trying all the milk does not flow yet we really shook passed the bottle so that there is no lumps ... more bottles fled once two air escaped not I think the pacifier did not suit her at all and growing even less because it is a greedy ... We are past nuk no more worries, such as maternity or she was born. But numerous friend was satisfied that is why we made those but all the babies are different. But even if the pacifier mouth quickly.