Hi

I'd try it with just the smaller insert first, see how much a wetter he is. If he pees that out with one pee or whatever, just use the bigger insert folded down. I do stuff it so the bulky part is towards the front - handy with boys cos thats where their widdle goes!! lol

Are you stuffing it and then snapping it down into the right size? Cos I snap down first, and then stuff the pocket.