I have got a reusable nappy to try for my little boy and put him in it for the first time this morning. It is a pocket nappy so I have wedged the fleece insert that came with it inside the pocket and put two thin disposable liners on the top next to his skin. Is this right? And when it comes to changing him do I have to take off the whole nappy with pocket nappies or do I just dispose of and replace the thin liners? This is my first foray into reusables so I'm a little clueless.