I do have one more question though. In reference to point #1, are you saying that everyone who applies will be approved regardless of reason as long as he/she is not a felon or otherwise prohibited person?
Typically if you can be approved for a handgun or rifle than there isn't any reason to be denied an NFA item.
What do you mean by " regardless of reason " You either are or arn't approved? Reason is up to ones history to answer.