As I'm sure you know, choice of breast implant profile and incisions are individualized for each patient. A moderate profile plus implant, for a given volume, is narrower and fatter than a moderate profile implant. Depending on the width of your breasts, your desired upper pole projection, and your desired volume, either type of implant may be better. Your surgeon should be able to demonstrate the implants to you and discuss the pros and cons in detail, particularly as it relates to your anatomy. In general, though, a moderate profile plus implant will give your more projection and more perkiness; a moderate profile implant will be wider and will provide less upper pole fullness.
The periareolar incision is a commonly utilized incision for breast augmentation and, in many patients, is a very good choice. Like the inframammary incision, the periareolar incision allows for placement of both silicone breast implants and saline breast implants, as well as placement either in front of or behind the chest wall muscle. Also, like the inframammary incision, the periareolar incision can usually be utilized for future breast revision surgery. If a patient requires a breast lift at the same time as breast augmentation, this incision will usually be used, since both types of procedure utilize this incision. A small minority of patients have poor scarring after the periareolar incision is used. If the incision does not heal well, the scar can be noticeable, as it is located in the center of the breast.
Hope this helps. Best of luck.