For people having difficulty making the switch a lot of attention is paid to battery, topper, and juice. These are all important elements of a satisfying vaping experience and will stack the odds in favor of a successful transition. One seemingly mundane aspect of the practice though, is inhalation technique. It's instinctive and natural for many, but not all of us. For those that may be having trouble in this area, there are some helpful hints here. http://www.e-cigarette-forum.com/forum/ecf-library/337017-inhalation-technique-e-cigarette.html