I am wondering the difference between Mentor moderate profile & moderate profile plus implants?

Thank you for the question. Despite good intentions, online consultants will not be able to provide you with  meaningful specific advice.  Ultimately, in person consultation with well experienced board-certified plastic surgeons will be necessary. Careful measurements, dimensional planning, and careful communication will be key. The difference between the moderate profile versus moderate plus profile breast implants has to do with the dimensions of the breast implants;  specifically, the moderate plus profile implant will have more projection compared to the same size moderate profile implant.
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're 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 which operation and/or 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 "C or D cup" 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.
I hope this, and the attached link, helps.

The actual difference between a moderate and moderate plus profile implants is very slight. The moderate plus implant just slightly more narrow. It will have just slightly more anterior projection. But, the differences are very subtle. There is a big difference between a low profile implant and a high profile implant, but not much between the two you are trying to decide between. I would choose the one that has the diameter that most closely matches the measurement of your breast width. Your surgeon should be able to explain this to you in more detail.