Well, I tried mine this morning with a prefold and mf cloth, and thought I'd done a good job of going to the edge. Connor was wearing babylegs, so nothing over the nappy, but it was slightly damp around one leg after about an hour
It seems a good fit on him - it's a medium, but he's quite skinny - nice and snug around the legs, and with the fleece showing, so I guess I'll just have to experiment with the stuffing. I have the same problem with fuzzis, so I just need more practice I think. I don't have any hemp inserts, so maybe they're the way forward, but will try a cotton babies insert with extra mf cloth next I think.