I've been using Dr.browns bottles for the first 3 weeks and have noticed that several of the level 1 teats that I've been using are dripping/leaking slighlty from the teet hole when you turn the bottle upside down.
Other level 1 teets which I have don't drip/leak, although I'm not sure if these leaking teets should be thrown out of if it is normal for them to drip slightly or not!!! I've got the same problem with some of the level 2 teets - i.e. some leak and some don't (despite the fact that I've not used any of the level 2's already!)....HELP!!!