OK guys this teardown is for helping people with dry hit after like 7 or 8 puff i notice alot of smok coil does this all you have to do is get a sewing needles poke hole into the cotton coil one one the top and one on the bottom helps wicking the cottons better after like 2000 puff it will do it again so just repoke those hole this happen because ovee time the cotton siezed up these hole not allowing e juice to get in so i recommend a 70/30 hope this help all dry vaper out there my coils last 3 week before news one before it only last one day keep on vaping