Thanks for your post. It sounds like overall you are on track for a decent chance at the schools you mentioned, with a 650; though yes your Quant percentile (more so than the score) will be a weakness of your application. Might you still be considered with your profile and the overall 650? Yes certainly, and a strong application will help (i.e. essays, recommendations, resume etc). Would it be even better with a higher quant score? Sure... so that becomes a personal question of whether you'd like to re-take or not before March if possible.... schools do take the highest scores, and taking it more than once is fairly common, so something to think about. But overall I wouldn't say it's not worth it at all, at the schools mentioned, with your current score, no. Keep us posted, good luck!
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