I have a vanilla copper mod which I have owned for 7 months. Use it with a tugboat rda. Has been working great. Over the last several weeks it has started to fire in consistently. I have to clean it every day and even after that it only fires consistently for a few hours. Every two days I noticed increasing buildup under the firing pin. I've been cleaning it with a wire brush. I have also been soaking everything in vodka before polishing. I cleaned it this morning. It was good for about maybe one hour and now its not firing again. Also noticed that the quality has decreased even after cleaning, when it does work. Any help would be greatly appreciated. I cleaned it this morning. Is good for about maybe 1 hour and now it's not firing again any help would be greatly appreciated.