I have been using this combo for a year and have never had any problems. one cartomizer lasts me 11 days give or take. But people are telling me that I am going to pop cartos left and right and yet i've never had a problem. (using my 5 volt passthrus, vamo, sid, MV BoxMod, Provariv2.5. Is there anybody else that vapes like this? maybe its cuz I use mostly menthol juices