Welcome to the forum.
If the attys are new it could be down to priming liquid in the atty, I am assuming the Tank attys have priming liquid in them like the standard ones but I donít use them so canít be sure.
The taste should go if it is caused by priming liquid.
I actually think the tank attys are not primed, you have to put a tank on them and take a few draws before connecting a battery to prime them.
I didn't notice that acrid priming fluid taste from my tank, as compared to my original 510 Titan with the wicked atomizer and fluval cartridge.