Bottle Nipple Dilemma

[MrsAdventure]

I'm not really sure what to do. We use Avent Naturals, and Pips has been using the NB (size 1) nipples.  But she recently started to get aggravated at them so we moved to the 1 month + (size 2) but formula mostly just oozed and seeped out of her mouth like she couldn't keep up.  I don't mean a little either, about half of whatever she tried to eat was coming back out of her.  So I moved her back down to size 1 and she was happy.

Except DH, in his infinite wisdom did not stop the 2's. Supposedly, she no long gets goofaced for him, but everytime I try the 2's she still a hot mess. However, now the 1's don't just annoy her, she gets ragey.  The only time she doesn't have a fit is in the middle of the night when she's half asleep and the 2's would make her choke.

So my question to you ladies is, what do I do?! The 2's make her gooey and waste a ton of spendy formula, but the 1's make her ragey, I'm at a loss!

[jjh1119]

We use the avent naturals, too. When we use the 4 ounce bottles we still use the 1s but when we use the 9 ounce bottles we use the 2s. Since the 9 ounce bottles are bigger, I just make sure that he is propped up more and that the bottle is definitely parallel to the floor, almost slightly tilted down until he has a good latch and then he drinks as usual. I probably would have just kept him at the 1s but the new bottles came with the 2s and he seems fine with either nipple.
I have way more 4 ounce bottles and noticed he struggled with some of those, so I tipped the bottles upside down and three of the nipples basically just streamed out the formula so he was choking on those.

So maybe try the 2s a bit more upright until she gets used to it?