I e-filed my Form 1 to manufacture an SBR from my 8" Sig MPX pistol last Tuesday, and mailed my fingerprint cards today! Really excited. I was very careful in filling it out, but the interwebs does have some conflicting information. But hopefully it will go through. My question is kind of retrospective - I did paper FD258 cards, which I requested from ATF, so they already had the appropriate ORI and requesting agency information. Do digital print cards work just as well, as long as they're in the FD258 standard and not some other state or local format? I am thinking probably so, and also I discovered my local sheriff can print on supplied cards, which would negate the question about the card format, but I discovered this too late to do them locally and went to the next county over yesterday for ink cards. There's only one agency in my area that does ink prints, and it's a 20-minute drive and also they're 50% more expensive per card than the local agency, which will do a digital print card only but is also within walking distance of work over my lunch hour. The other question, that probably no one knows is, does ATF start working on your documents right away based on your e-file submission, or does basically nothing happen until all your documents are in their hands, i.e. fingerprint cards?