I'm going to be returning to work in a couple weeks, so DS will be bottle-fed EBM during the day. He's already has the occasional bottle in preparation, but drinks them down way too fast! DH tries to slow him down with frequent pauses, but DS HATES that and yowels like a feral child. I love GLASS, but the newborn flow on my glass Avents seems way too fast. I've switched it up with the Medela bottles, which do seem better (but not glass, oh well). The Medelas are also convenient since my plan is to pump what I need for the next day directly into them (crosses fingers that I have enough supply). Can I do better though? Which slowest-flow nipple brands do you like? Any glass bottle brands with slower flowing nipples than the Avents? Anyone try the nipples for Lifefactory bottles?