I have 3 mandy macs too, not my favourites. Isla out wees them pretty fast & thats with the "night" booster in them as well. But they are a good fast drying nice fit nappy. They are the naapies I use if its raining & I can't get the more absrobant nappies dry.
Isla is also in size 1's & 12 months & they still fit her well. A bit narrow maybe but no leaks yet. I don't even use a snappie anymore I just put a good cover over the top & it stays on well. I will probably look at getting more for a newborn.