Hello all, I need some help 
So I measured myself according to the Bra Guru's instructions, and results were 29.5 underbust, 33 over. Which I figured was a 30C, rather than the 34B I've worn all my life.
Popped into M&S today just for a look, and thought the 30Cs all looked on the small side, so came away with a pair of basic t-shirt bras in 30D (I know I should have tried on, but was pushed for time and wearing various layers of clothing and bags).
Tried on at home and found the band really uncomfortably tight - I could only just get it on on the loosest hooks
. I also found that once I had 'scooped' myself into it as per the instructions, I was spilling out somewhat.
Anyway, went back to the blog and noticed this footnote:
"*there are a couple of exceptions to this rule. If you are very very slender and have no ?padding? around your ribs then you may find it necessary to try one back size higher."
Is this me, do you think? And if I try a 32 band, which cup size should I be looking at?
TIA