I own a Joye eGo and have learned a few things that I hope can help y'all. I would suggest using a Low Rez Atomizer and a drip tip. More vape! I hate the cartomizers that have the foam in them. They just last a month then start having less and less vaper. Now the Low Rez will begin to do the same as my theory is they build cake on the coil. What I do is soak the atomizer submersed in rubbing alcohol for a couple of hours. Then I use one of those air cans that are for cleaning your keyboard off. I spray in there with a tissue on the other side, then turn it around and do it from the other side. All this brown stuff comes out. Next I let it sit for a hour so the alcohol all evaporates. The first time you use it after this cleaning process you may be a bit frustrated. It wont produce as much smoke as you want. Be patient and keep vaping on it. Once do the the first or second filling of juice it should be ready again and smoking at about 95% that of a new one. I have had the same Low Rez Atomizer now for 5 months and it's still going strong using this cleaning system. This process can save you a lot on new atomizers every month.