I read this advice here just reposting it again for people to see. Couldn't find the post I got it from again so I'll paraphrase (maybe someone else can find the original post and give credit where it's due)
Anyway here it is in all its simplistic splendor.
Turn your whole ecig upside down for a second or two, then while taking your first puff after a while of it not being in use hold it level or even slightly tilted up.
This is a fix if your coil doesn't wick correctly, moving the liquid around like that helps it create a seal and you can feel the pressure fall into place while you drag. And that fixes it excellently, went from wanting to throw it in the trash to tons of vapor and much better flavor. Definitely happy with my ets now
Hope this helps
Anyway here it is in all its simplistic splendor.
Turn your whole ecig upside down for a second or two, then while taking your first puff after a while of it not being in use hold it level or even slightly tilted up.
This is a fix if your coil doesn't wick correctly, moving the liquid around like that helps it create a seal and you can feel the pressure fall into place while you drag. And that fixes it excellently, went from wanting to throw it in the trash to tons of vapor and much better flavor. Definitely happy with my ets now
Hope this helps