I applied for UNC BBSP, but one of my letter writers didn't submit my letter before the priority deadline(even though I asked her to) so I'll just have to wait and see! Congrats on your interview!
Both of you are so right! I spoke with two prospective PIs while completing my apps and they both said that while research experience is important, no one is counting you out because your CV isn't 15 pages long. As long as they can see your passion, they see you. It's incredibly difficult to show passion you actually have in your statements, and even harder to fake it if you don't have it. They'll see you!
This isn't necessarily true. For quite a few applications I was advised to upload pdf copies of my official transcripts on my application, and it explicitly said that they needed to show the university's watermark/seal and that they could not be from a webpage.