If it's any help I used our BG 3.0 on our Prem DS when he got to the 7lb mark and they're fab, I just folded the front panel forward on each side as it's a bit wide for my skinnymalinks! I still do now he's in the high 9lb range otherwise the fleece gets wet! I've not had a single problem so far, I love them!
Haven't tried the 4.0, but my DS was 7 pounds 10 ounces at birth and there was no way the 3.0 would fit him. A lot has to do with the baby and their build though...my guy has skinny little legs, even the BG XS still don't always get a snug fit.
BFP #1 11/28/09 ~ EDD 8/6/10 ~ DS Born 8/9/10 BFP #2 8/27/13 ~ EDD 5/8/14 ~ Natural MC 9/18/13 at 6 weeks, 6 days BFP#3 3/28/14 ~ EDD 12/7/14 ~ DD Born 11/21/14 BFP#4 6/15/17 ~ EDD 2/20/18
The BG 3.0s we have (almost exactly the same as the 4.0s) didn't fit her until she was about 1.5 - 2 months old. And even then, they were quite a bit bulkier than her other diapers, like her small BG AIOs, so I wouldn't necessarily grab for them first.
That being said, I LOVE our one-size BGs - I just don't think they will fit a newborn. As far as OS diapers we have FB, BG 3.0s, BG organics, RaR, Swaddlebees, Blueberry and the ONLY one I could see fitting a newborn is the Rumparooz (though I didn't try them on her right away).
Re: Anyone using BG 4.0 on newborn?
BFP #1 11/28/09 ~ EDD 8/6/10 ~ DS Born 8/9/10
BFP #2 8/27/13 ~ EDD 5/8/14 ~ Natural MC 9/18/13 at 6 weeks, 6 days
BFP#3 3/28/14 ~ EDD 12/7/14 ~ DD Born 11/21/14
BFP#4 6/15/17 ~ EDD 2/20/18
The BG 3.0s we have (almost exactly the same as the 4.0s) didn't fit her until she was about 1.5 - 2 months old. And even then, they were quite a bit bulkier than her other diapers, like her small BG AIOs, so I wouldn't necessarily grab for them first.
That being said, I LOVE our one-size BGs - I just don't think they will fit a newborn. As far as OS diapers we have FB, BG 3.0s, BG organics, RaR, Swaddlebees, Blueberry and the ONLY one I could see fitting a newborn is the Rumparooz (though I didn't try them on her right away).
Hope that helps!
BG 3.0s did not fit #2 until he was 2 months old.
We used prefold & kissaluvs fitteds with thirsties covers until they fit.
I have a blog post here about cloth diapering a newborn.
Tales of the Wife