I don't remember the exact age, but I think it was around 3months... She was taking 45 minutes to finish. It was CRAZY! We're already on stage 3. I think we may have to get the stage 4 at some point. Apparently she's an aggressive eater! :P
We are still on Level 1. It says on Dr. Browns that Level 2 is for 3-6 months, but my DD sucks the bottles down too fast and it makes her spit up more, so we are staying with Level 1 for a while longer. She is 5 months old.
Pedi had us change at his 2 month appt since it took him forever to eat. I don't think he was quite ready so we went back to 1 for a little while. He has been on 2 for about 2 weeks now.
Re: level 2 nipple?
This. LO 3 months 3 weeks.
This and our LO's are about the same age. He finishes 6-7oz in 15-20 minutes, so I don't think he needs a bigger nipple hole!
this DS is EBF
I switched DS to level two about three weeks ago.