Very Good -. Attention differences betw Cup B and C!

Did I ordered for the purpose of size selection Cup B and C - have now retain Cup C, although the bra is too big something - but since my baby still comes, I expect even a larger bust.
Even otherwise differences I have noticed that surprised:

Cup B has a narrow underband (ca.1,5cm narrower than C cup) and in Gegan set to C 3 instead of 4-fold adjustable. Strange, I thought StillBHs generally have the 4x eyelets.
Furthermore, C has padded shoulder straps, that are a little thicker right where the weight pulls.

So the trigger there for Cup B if you think about it - but I would have kept B if it had not had this compromise because it would simply fit better. But with nursing pads etc. I am confident that the cup size then get there.