I've toyed with dripping and I love practicing my coil builds with my trident clone. I like the flavor and vapor production from dripping but to tell you the truth its just too much a hassle for me. Ever since I have been vaping my russian 91% and russian/kayfun lite rba's I can't seem to be hassled with dripping on a regular basis. Plus I seem to get about the same flavor from my Russian 91% as my rda. This is not to say that I won't drip from time to time just to change things up a bit. I'm now a die hard fan fanboy of the Russian 91%. My KPT2's are just collecting dust now.
Its just great having so many different systems to choose from. Each to his/her own.
Lol. No difference. If I'm not mistaken, industry standard is to list the ratio's with PG first, then VG. (eg, 40PG/60VG) With that being said, SOME sites list it with the VG first. Always pay attention to what it is you're actually ordering.
Attached the coil to the battery. Hit button. No liquid involved. Short bursts recommended. Usually done to burn off residual liquid or water.
Will it extend the life? Not really. You could also burn or break the coil while doing this.