We transitioned to using pockets primarily at 6 weeks when dd went to daycare. We still use prefolds and covers at home, but the BG 3.0's are our go to diaper.
We started using pockets at 11 months, which is when we started CDing. I think Justin was about 20lbs....I loved them from the get go, so we never really tried anything else.. I got an AIO or two and hated them.
I think it was around 5 months. We had used and loved our prefolds/covers, but because of the size we needed to use (heavy wetter, wide thighs) they were always very bulky. We were concerned about their impeding B's learning to crawl - he couldn't get his knees in position properly - so we switched to BGs, which were more absorbent and much trimmer. We also liked that we could double stuff them for night use, whereas to make the prefolds absorbent enough to not need five changes a night we had to pretty much stuff a mattress between his legs.
Contemplating the snow.
Mes Petit Choux
I can't go back to yesterday - because I was a different person then. ~ Alice
About 2mos. I'm going to pull the terrible mother card and admit that I can't remember how much DD weighed at that time without looking at her growth chart ... but she was tiny.
Re: When did you start using pockets?
Big E (6) & Little E (2.5)
Mes Petit Choux
I can't go back to yesterday - because I was a different person then. ~ Alice