I don’t think we will use size 2 for at least another 1-2 months and baby is currently 3 weeks old, she’s best on size 0 still
We never moved beyond a one with my first. You could always try and see how he manages the faster flow.
I’m using mam bottles and my little girl sucks the teat so fast I wonder if she’s ready to size up but also think she’ll drink too fast if I do
Baby is 3 weeks and is happy on teat size 0 still. Not even moved to 1 yet! 😂