There was a really good thread this autumn which explained how to work out which bra size to try for people who measure between sizes. Does anyone remember which thread I'm talking about? I've been searching for it but I can't find it. I want to order online so I would prefer to have some idea of the right size to order from measuring myself at home and that thread was really helpful. Alternatively, can anyone advise me which sizes to try? My back measurement is 33" and over-boob measurement is 39.5".