IMO its never too late.. I started my dd 7.5 "late starter" approach and it's working for us.. we're ECing full time. She's in trainer pants now.. no longer needs diapers. I still use AIO for long trips just in case (I don't trust myself and letting her pee on Britax carseat cover in middle of road trip kwim? hope someone else can help you out and I can recommend "Diaper Free" book by Ingrid Bauer.. it's been handy for me.. I'm still reading it and it a lot good ideas and positions you can do with your dc.