What happen if I picked moderate plus silicone implant that bigger than my base width? Uniboob and less fuller look? (photos)

I appreciate your question.
I always leave the ultimate decision about implant size and shape to my patients. I only suggest different options, but do make strong recommendations. I don't try to talk patients into any kind of size and shape, but allow them to have the freedom to choose their best liked implant from all the choices (after all, it is a free country). 
However, I think it is good to listen to your plastic surgeon and consider the rationale behind one versus another choice. I like all the implants you have mentioned, but I believe you will be happiest with your original choice. Communication with your plastic surgeon is the key to getting the result you desire.
If you feel your communication has hit a hurdle, then I suggest speaking with another plastic surgeon to get a different perspective. 
Good luck, Dr. ALDO :)

Thank you for your question. "Tissue based planning" relies on your chest and breast measurements and is the safest way to ensure good long term results. Your surgeon should determine what size and projection are necessary to give you your desired result based on your body's measurements. The best way to assess and give true advice would be an in-person exam. Please see a board-certified plastic surgeon that specializes in aesthetic breast surgery. Hope this helps and good luck with your surgery.

Thank you for the question and pictures.  
 Based on your photographs, I think that you are starting at a good place and should have a very nice outcome with breast augmentation surgery.

There are no hard and fast rules when it comes to diameter of breast implant versus diameter of breast (band width). In other words, these measurements are useful but are only one of the many factors come into play when it comes to selection of appropriate breast implant size/profile.  There is definitely some leeway when it comes to measurements and breast implant options (breast surgery is an art as well as a science).

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, in bra sizers, and computer imaging) as well as careful measurements (dimensional planning) will be critical.

***Given that your surgery is coming up soon, I would suggest that you spend additional time communicating your goals/concerns directly with your plastic surgeon, preferably prior to the date of surgery.

Generally speaking, the best online advice I can give to ladies who are considering 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. For example, I have found that the use of know words such as “full looking breasts” or "D or DD cup” etc means different things to different people and therefore prove unhelpful.
Also, as you know, cup size varies depending on him who makes the bra; therefore, discussing desired cup size may also be inaccurate. Again, the use of computer imaging has been very helpful during the communication process, in our practice.

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.

I hope this (and the attached link/video, dedicated to breast augmentation surgery concerns) helps. Best wishes for an outcome that you will be very pleased with.