Clean em really good before using.I was thinking 'the whoas of braking in a new atty'.
New atties are full of a nasty tastin' primer.
Some are fine. The Subtank Minis I got were fine. Just a quick rinse and used em. The Lemo2 on the other hand required some cleaning.
And it is not just attys. I got a couple of mech mods recently and the threading seemed a bit wonky. Cleaned the threading with qtips and alcohol and now silky smooth.