A friend of mine asked me about BG 4.0s and since I've never used them I thought I'd ask you lovely ladies! She has a two year old chunky monkey (37 lbs) and has thus far mostly used prefolds and covers. She was eying BG 4.0s at a local store and was wondering if they'd fit her big boy. If you wouldn't recommend them for her situation, what would you recommend? I like my Sunbabies for my chunky thighed girl but she's "only" about 26 lbs.