thanks again, great tips and advice. i order an ai2 and yes it seems the leg parts will make a huge difference being able to customize it.
i checked the washing instructions and had completely forgot that they need to be washed in hot water! my machine is a super water saving one as we were on tank water till not long ago so that was the way to go and so it doesnt do rinse cycles or anything and it senses the water level itself so from now on i will pre soak them all prior to washing. will do a strip wash and change the way they are washed and hopefully that will help, but i do feel being able to adjust the legs is going to make a huge difference. yes using part time means i can do a load which will be a couple of nappies only or i can chuck them in with the clothes to make a decent load, or i can leave them sit for days to make a nappy load which just isnt an option, that i guess is the downside to part time mcns. if i change the powder i use that should help too and hopefully with the new nappies she wont be wet so quick and i will have the motivation to use them more meaning there will be more to add to a load on their own.

anyway thanks heaps for the advice, much appreciated and has helped me a great deal