Thank you for the photographs and for asking great questions. Many women share your concerns with regards to selecting the "right" breast implant sizes for them. However - and I tell this to ALL of my breast augmentation, breast reduction breast lift, and breast reconstruction patients - one CANNOT guarantee cup size with breast surgery. In the year 2021, it simply is not possible, and many of us plastic surgeons (myself included) have this language included in our informed consent paperwork. This is an important discussion a well-qualified plastic surgeon should be having with you in consultation and pre-operatively to make sure expectations are appropriately met. For starters, at least in the United States, bra sizing is TERRIBLE and not an accurate reflection of breast VOLUME. This is an important distinction. While we plastic surgeons make a VERY gross estimate of cup size as it pertains to volume - by estimating ~120 cc per cup size change - this is not particularly accurate, as breast density can differ greatly between individuals and even between breasts in the SAME individual. Even intraoperatively, when we use sizers, those sizers can differ significantly from the final implant selected and implanted. We take as many measures as we can to avoid "buyer's remorse", and I would say most breast augmentation patients come away happy with their procedures (assuming no major complications), but it is an imperfect science. Breast sizers and sometimes the use of breast imaging (Vectra, Illusio, Crisalix, etc.) are useful adjuncts to help you achieve the right "look" to your augmented breasts. But again, no protocol or system is absolutely perfect. If, with sizers, you found a range (emphasis on the word "range") with which you were happy, then you should trust your plastic surgeon - assuming he or she has the right credentials - to help you meet your goals. Managing patient expectations is a critical aspect in achieving those goals. Seek out a Board-Certified plastic surgeon comfortable tacking all sorts of breast aesthetic issues whenever possible, to ensure you undergo the procedure safely. Assuming your current surgeon fits the bill, then please try to have some faith in the game plan with which he or she has offered to you. It will also be beneficial to you for your own mental health! :-)