I quit analogs a few years ago with a basic 510 kit. I liked vaping but did not like dealing with charging batterys and filling cartomisers all the time. And went back to analogs. I am looking to quit again. I am looking at a lavatube 2 from volcano. I also want to get a tank but conffused on all the types like dual or single coil, and low and normal resistance. Can some one explain or point me in the rite dirrection. I have done a lot of reading and searching and came up with nothing.