I think now might be a good time for me to try an HH. 357 again.
Engineering oversight, or trend? I attempted to use a 510 atty on the very latest mod I received. The Youde Balrog (that's tough for US to pronounce, can't IMAGINE how tough it is for Youde). There is no consideration in the 510 connector for atomizers that take air from the 510 stem. I almost lost an eye.