I ordered a Joye eGo-T and was wondering how often you have to change out your atomizer? I know that I read that when you first get it to make sure to clean out the "primer" that it comes with or it gives a horrid taste but how often do you clean it after that? Also what is your preferred method of cleaning it? I also know that after a certain amount of time you'll need to switch out the atty so my big question was definitely how often do you change yours out