LexAir,
My experience was very similar to marqmarq's. After having a class date canceled at CoEx and then never hearing anything from ACA for 6 months while in their pool I asked a friend from college to walk in my resume to Comair. It took almost a year to get the call for the interview and he really went to bat for me. After countless attempts of walking in my resume to HR he finally approached the chief pilot and I eventually landed the interview, thanks to his efforts. Stay with it. If my interview experience is any indication of what the company is like I'm glad some previous opportunities didn't work out. Good luck.