Re: Giant Osocozy prefolds!
You could trifold your size 1's to use them for longer?
Otherwise, you're right, the bigger standard size is rather huge on a 10week old.
What we used to do actually, with the size ones was do something inbetween. We'd lay the cover down, lay the diaper on top, put baby on top and then just fold the part between their legs in and do the cover up. No pins etc.. The cover held it in place and it gave a bit more coverage around the bum than trifolding.