Extremely low quant score... but exemplary undergrad quant record

Alright, so I'm applying to MSF programs now and I am starting to get really pessimistic about my chances. I have never been good at standardized tests, and I scored embarrassingly low on the GMAT Quant section (34... 610 total score) and I feel that this is going to really hurt me in the admissions process. The thing is, I'm an Applied Math major* at a top (though extremely non-target) liberal arts school with what would be a near 3.9 GPA in my math courses (hard to really get an exact figure, since my school doesn't have GPAs... I'm just going off of test scores). These courses include Calc I-III, Linear Algebra, ODEs, PDEs, Mathematical Statistics, Numerical Methods, Nonlinear Dynamics, Mathematical Methods for Quantitative Finance, Networks and Graph Theory, and Complex Systems (among others). I also have extensive research experience.

I have applied to five schools: Bentley University, Boston College, Vanderbilt, Villanova, and WUSTL. I just found out that I have been waitlisted at Vanderbilt, so that has really put a damper on my spirits. My undergraduate record is nigh perfect and my extracurriculars are very strong. What are my chances at the other schools? Is it only my gmat score that's bringing me down?

Thanks.

*I'm actually an Applied Math and Econ double-major