Hi, I have been vaping for a little over a year and currently have a SMOK with a big baby tank and I am tired of them leaking all over the place. I have three of them. One of them just emptied the tank in a standing position for no reason. I have cleaned them, changed the coils, changed the o rings and so on. I think it is time for a change. Can you please recommend a kit that has a good battery life and if not complicated to maintain, not cheap but not expensive and most of all one that is know to not leak (or leak very little)? TY 