I really dont.... i go abck and forth with bf... similar to you i gave stone bottles.... not cause he didnt latch.... he latched like a pro.... but my milk.... it just wasnt enough... i mean it was fulfilling him.... at 2 weeks (still loosing weight) we gave him formula and he was like an etheopian eating for the first time.

poor guy) So once we started with the bottles he like took to them. But now i know maybe i should have bf him more so my milk could come in more... so i go back and forth. Plus I wont do in front of stone.... and he is home a lot. So, me too will use bottles.
I used Avent.... with stone they were the best.... but now with the plastice issue. I may try Bobys own or something..mam.... they seem safe.
Good luck to you.