Should I go with a Mentor Moderate Classic profile or Moderate+ profile Implant?

The best cosmetic result in any particular breast
augmentation patient depends on a variety of factors, including: your
individual anatomy, realistic expectations, desired result, a thorough
discussion with the plastic surgeon about the options, and an understanding of
the pros and cons of any particular implant choice. Proper sizing is not just
about the number of cc’s or implant type. The thickness of your tissue, breast
dimensions which include the width, height, and projection, as well as chest
wall width all need to be considered when choosing an implant. Trying on
implant “sizers” of various shapes and volumes while wearing a tight t-shirt,
bra, or bathing sit at a preoperative visit will help you and your surgeon
choose the optimal implant.Keep in mind that following the advice from a surgeon on
this or any other website who proposes to tell you what to do without
examining you, physically feeling the tissue, assessing your desired outcome,
taking a full medical history, and discussing the pros and cons of each
operative procedure would not be in your best interest. I would suggest that your plastic surgeon be certified by the American Board of Plastic Surgery
and ideally a member of the American Society for Aesthetic Plastic Surgery
(ASAPS) that you trust and are comfortable with. You should discuss your
concerns with that surgeon in person.Robert Singer, MD FACSLa Jolla, California

I doubt your breast width is 15cm given your height and weigh,  12 cm is more likely. 470cc  is huge for you  IMHO. Most woman do not want wide breasts that are under their arm pits. I would consider another consultation. Good Luck!