450cc High profile or 590cc UHP for swap and replace. I have a BWD of 12.5cm & currently have Mentor round 375 mod+ under the muscle. I would like to go up in size & profile, to motiva round implants either high profile of ultra high profile. The 450cc high profile should fit in my current breast pocket, however the UHP in Motiva increase quite drastically to 590cc. Would the 590cc fit in my original breast pocket? Will they look too large for my frame & would the outline of the implant be visible? What issues could i face going too large?