So, I've been using mechanicals for about a month now, and recently decided to get a hybrid top cap mod. After a lot of research, I decided to get a limitless mod, and an authentic el cabron rda. First few days were awesome, thing hit hard, then a couple days ago the aluminum switch started getting some corrosion on it, where it touches the battery. Now it's misfiring, and not hitting hard at all. Cleaned the switch, and same thing. I'm getting really frustrated, anybody have any ideas about what I can do to fix this?