Need help choosing b/w 445 mod + and 485 HP, 29 y/o 5'8 120lbs 13 BWD. Want silicone natrelle inspira round. (photos)

34A wanting fullC/D. Loved the way 457 mod + looked, we choose 445 b/c its overfilled. Concerned that after subpectoral placement I will loose 10% looking more like a 405( which I tried on in office and was underwhelmed) bc I am at the largest implant in mod + due to mY BWD, went to 485 HP. Is it realistic for me to assume 485 HP will look more like 445 once settled behind the pec? My PS rec was for 445 based on my frame and that I would look to top heavy in 485

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