hey guys, so i am a pretty new user to a joye 510, and i absolutely love it, but i have been having some issues with it leaking both when i fill the cartos and when i use the drip tip. it leaks through where the battery connects with either the carto or the atty. i dont think it is an overfilling issue either as i have tried to moderate the amount of liquid i use. has anyone else had this problem and found a solution? thanks for your input.