her under the muscle implants may not have been initially placed too wide - the pec muscle itself may have pushed the implants outward ! I've had over the muscle implants, then bigger under the muscle implants, and elected to switch back to over the muscle for my last set of implants because the "unders" were a constant source of low grade pain when I worked out or danced and worked my pec muscles a lot. Generally, the bigger the implants, the more a girl should think about "overs". However, there is one plastic surgeon, Dr. Brad Jacobs of Manhattan, who has developed a unique surgical procedure which utilizes a "muscle flap" and supposedly minimizes problems with larger implants.