Ooh I'm lost - are NA and BL the same person?
We go through about 3 a day, plus 1 at night (often just 2 bamboo in the day, and one extra thinner one for the cross over early evening bit when it is too early for bedtime nappy, but needs changing before then iyswim) - extra if there is more poo, but DS doesn't tend to poo all that often.
I did have 16 bamboozles, plus a couple of extras. I now instead have 9 wambamboos, 1 normal tots, and a handful of kissaluvs/terry squares that I use when I haven't been on top of the washing.
We get by with a wash every other day on just the wambams and the one tots, but I am not confident with that (especially when it rains on the nearly dry nappies ), so I like having those extra ones on standby iyswim.
16 was perfect, even more than I needed tbh as I was selling off a couple before I could buy the wambams.
I'm not sure how much help that is, or how much I'm babbling