We have four Fuzzi Bunz one size diapers- the older microfiber ones, not the Elite. I can't seem to get a good fit on my son. He's 16 months old and about 22 lbs (a little guy, I know). They used to work well for us, but it seems like he leaks every time he wears them now. They're not repelling, and they're not getting over-full. I think I'm just not getting a good fit in the legs. I loosened the elastic today, thinking that would help, and he leaked again. I've got it on 1 (1 is showing- there's one more hole we could use loosen to) in the back and 2 in the front (2 is showing; 2 more holes we could loosen to). It seems to fit him well like that- I don't think that it's too loose or too tight.
I'm thinking of giving them away to a friend who uses Fuzzi Bunz and just buy a few more BG's and/or RaR's.