I always got delayed for unknown reasons, and was never denied. I finally found out that I was kicked out for manual handling because I have a similar name to a multiple convicted felon (different race, different DOB) and they were usually so backed up it took time to get eyes on it. It didn’t help that IL doesn’t participate in UPIN.
NH was a breath of fresh air after that, and TX even better since I have a CHL. No waits at all.