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I’m in the same boat as you same size, I got told no bigger than 350cc but I’m toying with 300 or 325cc.
The surgeon told me 300 would likely tsk me to a D but they can’t guarantee an actual cup size.
Trying then on was really helpful as I realised 350 felt too big.
I have my opp on the 12th and going to decide on the day
Good luck xx