It makes contact - there's just a minute gap between the mod and the atty, doesn't impact on function one bit, just gets my OCD. I tried using and thin delrin disc to fill the gap but then the Atty wouldn't fire.
I can live with it until I can find a solution :-)
I purchased some of these a while back. (https://www.fasttech.com/p/2173201) They are 1mm thick which makes them too thick for most RDA's I've put on the Mod. I lapped some of them down at work and while a few came out a bit wonky, a couple of them are flat and are now only about 0.4mm thick. It's an option.