10A chosing between 275-295cc mod, want to be Ccup, anyone same size same implants that can advise?

I'm a 10A, 30 years old 1 child. Booked in for 17th march CMI. I'm  tossing up between 275 & 295 cc. I'm getting an augmentation because my breast are empty and saggy after 20 months breast feeding and now body building. I just want to be the same full 10c i was before I fell pregnant.  I really don't want to be anything bigger then C, I know they can't guarantee size, but I'm just wondering if anyone else who was the same size and had the same implants can tell me what cup/bra size they are in now