Also I tried on a 34B bra at Ross yesterday
It almost fit, I think...
(Having never owned a bra that actually fit, I'm not sure what a bra in my exact size is supposed to feel like...)
Looks like r/abrathatfits has set me on the right track. :]
(Now to find a store that carries 30C/D IN STORE TO TRY ON which is where the sizing guide actually put me... I tried 34B based on "down a cup = up a band" -> 32B/C -> 34A/B.)
Time to trawl the mall, I guess?















