Advised 350cc Mentor round HP silicone under the muscle. I'm 4'11", 100#, 11cm breast dia, w/pseudo-ptosis. Breast fed 3 kids w/ major weight loss. Currently 33" bust w/o bra (32A/B), but want 35" bust (32C). Worried over 300cc is too much, but PS says room for 500cc exist. So 300,325 or 350cc HP???