Come on now. If you think there is something lurking in your past that the ATF would turn you down on a form 1, just forget about it.
I don't have that problem so I can't see the harm in getting my info engraved on a gun whilst the examiners are licking my tax stamp.
"No, it's not a silencer. This little doodad is my own invention. I call it a loudener." --Sledge Hammer