P.S. Kristie, I know what you mean about only being able to eat so much at a sitting. I really do think that's been an issue for Ian also.

P.P.S. I'm still using the Gerber Gentle Flow plastic bottles in place of the Avent, but with the Avent nipples and rings. There is leakage once in awhile, but for the most part it's been a very easy transition. And they are much cheaper than the $ I shelled out to try Born Free! Ugh