I have been trying to quit regular cigs for a while now have tried a few different batteries and tanks but whenever I smoked an ecig my throat would hurt and I was always coughing causing me to turn back to regular cigs. Last week I ordered a new tank (KangerTech eGo 3ml Metal Bottom Coil Clearomizer) and a new juice with PG 25/VG 75 and I am loving it...I have read elsewhere about people having a sensitivity to PG and I think that I do so the higher VG does not hurt my throat.