This is a 2 part question. I really like my isub and isubG. They are pretty good all around inexpensive tanks and coils. I know there is a way to successfully rewick these heads. I have looked on youtube and not very much info there. I have tried the Japanese organic sheets and cotton bacon v2. I just cant seem to get it right. No matter what I do, the flavor isnt there and when I bump wattage up, they scorch. Does anyone have any tips on this? My second question is, I have some of the .2 ohm heads and no success right out of box new. Has anyone used these coils and if so, what wattage/device are you using. I would greatly appreciate any input.