Well this isn't a question that anyone can really answer for you. If you're already accepted then obviously you'd only be taken the GMAT for recruiting purposes. Generally, if you have a 700+ you will reach the threshhold for any consulting companies. I've read this numerous times and heard it from numerous sources. The only companies requiring 99% would be test prep companies. With a 720, and a 94% under your belt, I do not think that this will keep you from getting interviews. Ultimately, a high enough GMAT score and other credentials will just get you the interview. Then it's your job to close the deal. A 770 ins't going to get you the job you know? You're time might be better spent preparing for recruiting, networking with consultants, doing case interview prep, and pursuing other things that will set you up for good internships and good knowledge. I know once you're done with the GMAT it always feels like you left something on the table, but at this point you have to ask yourself if it is truly worth the retake?
PS there is no retaking the gmat forum, but I've moved your post to a different area of the site.
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