Ask an MBA Admissions Consultant

I m looking at applying to Northwestern and the University of Chicago and should have all of my application materials ready for the round one deadline. The only problem is that my GMAT score isn't quite where I would like it to be and I cannot retake it until about a week after the deadline. Would I be better of waiting until round 2 to apply? I will be going in with only one year of work experience and I have heard applying in round 1 would be my best shot. Please advise. Thanks!