Will going from 200cc implant to 275cc be a noticeable change?

The answer to your question depends on dimensions of your chest, the base width/diameter of each side of your chest, and the style implant from moderate to extra high.  Without this information and photographs from multiple angles, no RealSelf plastic surgery expert can give you a definitive answer.In your narrative, you stated that you are much larger than some of the other women depicted on RealSelf.  From that, I deduce that you are not petite.  I truly understand your frustration at having both a larger chest and smaller base width on your existing breasts.  Obviously, your plastic surgeon did a good job on the augmentation that you are now wanting to enlarge.  You may want to speak to him or her about the possibility of having an intermediate step where you put in a tissue expander which will increase the size of the pocket and allow your plastic surgeon to put in, safely, a larger implant.  This tissue expander is not inexpensive and is also time consuming.  However, it gives you another talking point to discuss with your Board Certified plastic surgeon.

Thank you for the question. Although it is not possible to provide you with definitive advice without an person evaluation, most patients are able to "go larger" at a second stage, once the breast tissues have expanded (after first-time breast augmentation). Sometimes, during this revisionary surgery, adjustment of the breast implant capsules is also necessary to achieve the desired outcome. Exactly how much larger you can achieve during the revisionary breast surgery will depend mainly on your physical examination; for example, for petite patients a 75 cc difference can be quite noticeable; for larger patients, a larger volume increase would be necessary.You will find that online consultants will not be able to provide you with specific advice in regards to selection of specific breast implant size/profile. Ultimately, careful communication of your goals (in my practice I prefer the use of goal pictures, direct examination/communication in front of a full-length mirror, and computer imaging) will be critical. Generally speaking, the best online advice I can give to ladies who are considering revisionary breast augmentation surgery (regarding breast implant size/profile selection) is:1. Concentrate on choosing your plastic surgeon carefully. Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you are looking for. Ask to see lots of examples of his/her work.2. Have a full discussion and communication regarding your desired goals with your plastic surgeon. This communication will be critical in determining breast implant size/type/profile will most likely help achieve your goals.
In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. I have found that the use of words such as “natural” or "D or DD cup” or "one cup size increase" or "significant or noticeable change" etc means different things to different people and therefore prove unhelpful.
Also, as you know, cup size varies depending on who makes the bra; therefore, discussing desired cup size may also be inaccurate.3. Once you feel you have communicated your goals clearly, allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals. Again, in my practice, this decision is usually made during surgery ( after the use of temporary intraoperative sizers). Viewing the patient's chest wall in the upright and supine positions, with temporary sizes in place, help select the best breast implant size/profile for the specific patient.I hope this, and the attached link (dedicated to revisionary breast augmentation surgery concerns), helps. Best wishes.