I know, I know - 98% of women or something are meant to be wearing the wrong size bra - but I went to get measured for a long overdue new one today and (having started bra-wearing life as a 34B) now appear to be the ridiculous sounding size 30DD. I think I'm right that with the different band sizes this is actually the same cup size - so the only bit that has 'changed' can be my rib-cage, which you would think would be pretty unlikely to fluctuate much in size, certainly not by as much as four cm. Do manufacturers just think that low band/high cup sounds better?