Wow really? That is precisely what the letter is about. How they will make that judgement. And once you are in front of the judge and jury all that really matters is what they can make the jury believe.How do you think the ATF determined my intent when I bought a brace?
A friend of mine got an email from the ATF with a copy of the letter because he bought an SB A3 brace online and they tracked him through his online purchace.