I tried DS2 on a size 2 teat today because his intake was really variable, he was falling asleep on the bottle and was taking AGES to feed. Seriously - like 45 mins for 2oz. He is also super windy

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He is almost 6 weeks (2 corrected).
Seemed to manage just fine and certainly dropped his feed time to more like 20-30 mins (with winding) for 4oz.
Does that sound OK?? I guess he might still need a size 1 at night when he is sleepy??
I'm feeling bad for trying it so young (main motivation was to see if the wind reduced).