I've read a couple threads that mentioned a self-cleaning cycle on an e-cig, but have never experienced this myself... Do 510's have a self-cleaning cycle? And what tells you that they are in the middle of one? And what exactly is this? A super heating of the atomizer? That seems like a silly thing to have in an atomizer with a limited life in the first place. Surely any kind of super heating or cleaning cycle would just shorten the life of the atomizer?