That unfortunately is not a fix @Mangrills, as the new Expromizer V4 will start doing exactly the same as the one it replaced.
To fix you need a non conductive washer placed under the 510 positive screw and above the rubberised grommet used as an insulator, I just haven't been able to find a suitable washer yet.
To fix you need a non conductive washer placed under the 510 positive screw and above the rubberised grommet used as an insulator, I just haven't been able to find a suitable washer yet.