Ekowool sucked in the Kayfuns. Cotton beats all in the KFL's..
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And after a few tanks using cotton (again) I will say I am still not noticing a lot of difference between cotton and plain silica. If anything, a little more vapor, but flavor and TH the same. For me, just not gettin' it. But it is easy to pull and replace cotton with a dry burn between. Just rinse off everything else.