Hi there. It is very important that you are active during the process of choosing which implant size is placed in you. If you have tried on sizers numerous times, like the volume and your surgeon has determined that the implant will safely fit your breast measurements, then 425cc is the implant for you. Breast augmentation is personal. The surgeon and staff is there to safely guide you and help assure that your choices are matching up with your goals. In my clinic, 400cc ranged implants are commonly placed in people with your body habitus.
Thank you for your question. Breast implant selection is an exciting, but stressful part of the breast augmentation process as there are so many choices. Unfortunately it is impossible to recommend the best implant style, size or shape without an in-person examination that allows for the measurement of key breast parameters, as well as permits an in-depth discussion as to your desired goals and outcome. I would recommend seeing a series of ASPS board certified plastic surgeons to ensure that the implants you decide upon are the right ones to meet your expectations. It sounds as if it may be wise for you to "try on" several of the implants so that you can have a better visual representation as to what they would look like. Best wishes!