<p>I would focus on other important things…like college essays and app.
Colleges just might think that you are obsessed with the exam…not a good thing.</p>
<p>However, if you are free and you’ve already done everything essential…and you really really need the perfect score to stand out for a scholarship or something…suuuree…
Otherwise, don’t do it just for fun. Your time would be better spent if you begin studying grad school tests like the MCAT, PCAT…etc This might just help with controlling your nerdy overachieving persona ;)</p>