My 4.5 month old son hates bottles. I'm using the Advent bottle and my baby just chews, chokes and screams. I don't need to use a bottle very often, but I want to start working a little, as well as go out alone 1-2 times a week ( 3-5 hours each time.) Is there a better bottle for breastfeeding babies? Should I just persist with the Advent bottle so he will learn to suck from it? I hate going out feeling stressed about this.