MCAT Retake?

I took the MCAT last summer. I got 518/519/512 on my practice AAMCs. 513 on the real thing, really solid scores on the SBs. My GPA is ~3.55 with 4.0 the final two years, and I want a solid MD acceptance (Emory, Rochester, etc. would be top picks). I'm very confident in the subjective components of my app. Anybody want to weigh in on whether I should retake this thing? 513 felt like a let down after my first two scores.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: MCAT: Medical College Admissions Test Source Type: forums