How generous are the BBH sized nappies and covers?

Ok I am finally biting the bullet and foraying into the world of MCN's! I have decided to get the trial pack of BBH and am just wondering what size I should specify for the wool cover, the PUL cover and the pocket nappy.
My DS is 10kg (I assume I haven't had him weighed in a while) and I want to know weather the medium (7-11kgs) will fit or weather I would need to get the large (11-16kgs).

OR

Would I be better off going for the large anyway so I will get more use out of it? Obviously I'm trialling so I'll need more either way.

Many thanks :)

Hmmm.. the covers are pretty generous...

Can you meet up with a BB person to try one on so you know for sure? If not, just take his measurements and email baby beehinds, they'll be able to tell you which one to go for.

MJ is about 9kg (im assuming - she has not been weighed in a while)
She is in the medium WOOL covers comfortaby, at a push i can get the small on, but the top hangs out a bit...
She can wear both the small and the medium PUL covers...
And she squeezes into her small AIO - but the rise is a bit of a problem, so we only wear these at home

However, MJ is a long skinny baby (not overly long though)...

So, based on this i would go for the medium for all, you are having another baby, so even if Flynn only wears them a bit, they will be used anyway... and once you decide what you like, then you can order larger sizes when you need...

you may find that you end up using other covers more...

ETA- im on Clayton, so if you want to meet up somewhere you can check out my stash if you like - good idea Mel