I smoked about 15-20 Doral Light 100's daily (since vaping I'm down to just a couple). I chose the 8mg VG juice because I want to completely wein myself off of nicotine. I also am using manual batteries and today I ordered an automatic. I don't know if I'm not doing something right, but I don't seem to be getting much vapor and sometimes I would like a little throat hit. Any suggestions?