Downsizing implants: what are the benefits of subfascial vs subglandular? (photos)

Subfascial will give more support to avoid sagging and more coverage so the "ball" is not seen. However, this is more painful. since your implants are behind the muscle, you still may have some flexing issues even with them in front of the muscle or even out.

Dear New80085,
I almost always place implants submuscular. It lowers the rate of capsular contracture significantly. In addition, it looks much more natural because the muscle provides covering over the implant so its not as round on the top. I've also noticed the implants drop less over time when they are protected under the muscle.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

There are pluses and minuses to each placement for breast implants. By going under the muscle you can avoid the muscle deformity that concerns you. Placing the implant under the muscle will help disguise the upper portion of the implant, which is especially nice for those with little breast tissue or a thin frame. Going under the muscle also has a lower incidence of capsular contracture. Thirdly having the implant placed beneath the muscle generally gives a more natural result.