The GRE keeps amazing me everyday. Its probably, in my opinion, the most stupid standardized test around. However, schools do need a way to weed out students, especially when ther have over 300 applicants , and each of them with descent GPA. When I was an undergrad, one of the kid on my dorm floor, put his GRE score report on a frame because he got an 800 in Quant but was not able to get a D in pre-calculus, he got an F, he was a sociology major, and he told me he was surprised that he got some really good admits. So, when some schools think that the GRE Quant is a fair way to compare students on a fair scale or a reality check for grades, I find that approach quite interesting. I was lucky to escape that test with an 800 in quant and 580 in verbal.
It will really be a shame if a 760 on Q keeps you out some of the schools you are applying to because you do have a good profile and a 4.0 GPA is quite an amazing performance, good job!