For the trouble of using cotton-balls, organic or otherwise (inconsistencies, flaws, lumps, etc.), I switched to Japanese Cotton pads, and couldn't be happier... 5cm by 6cm pads, 200ct bag, from Amazon for ~ $7. I pull one out, cut a strip, feed it through the wick, trim, assemble, vape... couldn't be simpler, and the flavor and wicking is fantastic.