I had 415cc from an AA cup, add me as a friend if you would like to see pics. I measure DD/E but look about a D topless i think. You will easily get DD with 415 starting at a B but there isn’t a great deal of diff between the sizes. I would go for the 450cc, you will measure probably an FF with that. My mate had 410cc from a 32B cup and now measures a G, just depeends really xx