I hate the oversized baggy look on my babies so I was happy to have 4-5 0000 suits just to cover those first few weeks.
I feel the same way about the baggy look. You're taking so many photos in those first few weeks that you want bub to be looking good. My DD was 2.98kg and 000 swam on her and we had to go out and buy 0000 suits. DS was 2.66kg and fitted 00000 suits for about 3 weeks, and is still wearing some 0000 at 3 months old, but saying that, mainly wears 000 and in bonds 00.