We use throughout south and in exceptional cases, M sucker. Even with a low flow amount sucking on the bottle is much easier than on the breast. Because it is used only the breast, it naturally begins with the familiar strength to suck. So she drinks in a high speed .... which means that when you burp almost everything comes back to high. The S and M sucker bow to the front of something. Cautiously we need to be yet and you still times briefly away while drinking the bottle so that they take into rest gets.
Again vary depending on hunger and content (milk or tea).
Whether the wide neck to the beverage has an effect, I can not say. We feed them with milk and pumps as needed directly into the bottle from - with the electric breast pump of the same brand. That works just fine. The bottle we so for 2-3 days in the refrigerator and bring them if necessary in a Flaschenerwärmer Philips.
The teat and bottle are easy and convenient to clean and sterilize at request. For this we simply cook them on the stove.
However, the first choice is the bottle not yet. But that is entirely at the taste of our daughter. Phillips Avent is better accepted. NUK completely rejected.
This is a matter of experience and probably different from child to child. But now where hopefully the summer comes with the warm temperatures, the children need more fluid and I will wean some more bottles are not wrong.
