DS is nearly 6mo, been in bumgenius pockets with a fleece liner since 3mo, but gets a nappy rash every couple of weeks. a day or 2 in disposables & slathered in metanium seems to sort it out, but i'm wondering if i'm missing something/doing something wrong? DP is quite keen on just using the bumgenius during the day & switching to disposables overnight, but would like to avoid this if possible. any tips gratefully received!