it’s really hard to tell what size you will end up hun. I had 325cc’s 4 years ago and my friend had 280’ccs at the same time. She is now a 30EE and Im a 34C/D, although she is a smaller frame than me. To be honest, I don’t think 50cc will make much difference anyway but speaking from experience, I’d go with the bigger implant, as I regreted not going bigger and have my 2nd ba in December. I should have shopped around instead of rushing into it the first time around x