I certainly hope not, I had to pick some of the dates towards the very end for programs that I am very interested in. And some towards the beginning. I don't think it matters, its more about if you can still look interested and excited and show you care at the ones towards the end... and I'm pretty sure that I can... I'm determined to do at least 12 to make sure I match somewhere that I want to be, and that has a good program of course.