I`ve been using ecigs for a couple of months and settled on a Nicostik type with a 510 atty and a 3.7 volt 14500 battery...I use 24 and 36 mg juice of various flavors and plain tobacco flavor...what I`ve noticed is,I`ve developed a persitent cough and sometimes sore throat??? Cigarettes of course cause some but not all the time.Anyone else experiencing this? I am using the PG type and wonder if switching to the glycerin juice is easier on the throat and lungs? All adivice and experience appreciated....Thanks for all that share on this forum...it has been most helpful..... ~ dale