What size are you currently? 400cc is a decent size implant, it’s the size I’m going for too. I’m currently 36B/C and hoping to be DD/E your surgeon will recommend the best size for you. I went to my surgeon asking to be the biggest he is willing to go and he went from 375-400 so I’m glad I’m going for the biggest he will go. If you are in doubt book another consultation with your surgeon x