I've been using a diaphragm for the last 17 months. I found it quite hard to get in the right spot to begin with, but got it in the end. It probably wouldn't be suitable for you mummycate until you've nearly reached your goal weight though. I think they recommend getting refitted if you lose/gain 7kg.

I like the sound of Persona. I might just pick one up when I'm next in England (I'm from there, and am planning on taking our new bub over there.....when/if we have it ). If I get the hang of it I can get my mum to post the refills.