New Doctor Brown Options bottles

[Amy0801]

Hiya. I have recently started using the new Doctor Brown Options bottles because my daughter suffers with a lot of wind and colic and I was just wondering if anyone else uses them as mine seem to leak even though I have made sure the vent is pushed in properly and the teat ring is nice and tight?? Also if I am going out and I heat up a bottle to put in a bottle warming bag it leaks like mad!?!?! Does anyone else have the same problem or can tell me where I'm going wrong?? Thanks

 

[Papermoon]

I looked at those bottle and bought a couple of them. was wondering how well they work. I was trying to choose between those and Nuk bottles. So I would like to know also how they are working out for anyone who has them.