I was that crew chief, I can see that being incredibly frustrating, especially on your own dime. That being said, that's part of the process. It sucks, but from my point of view, I saw it as I was being interviewed for 4 years. When It came time for the board, you know they contacted every supervisor I had and asked how is this dude? Any shot of a slot could've been shot down right there. Not saying kick sand by any means, but as many have said on this website, keep pushing and sharpen your package and interview skills up and I honestly believe they see that.