Unders hide more of the implant than overs do, I’ve got 300/325 overs & am a 32DD! But I’ve seen girls who’ve had 300 unders & only be a C cup! I asked to be a D cup but I’ve sized slightly bigger, fake boobs size bigger than natural boobs! I’d go for another consult if you’re unsure, all depends how much breast tissue you have to start with to what size you’ll be after, everyone’s different. Don’t feel pressured into anything, it’s your body & your money, trust your gut xxx