Try seating the coil a bit higher in the cup and stuffing the cotton in after. It needs to be packed in quite well or it will leak. I built a few for my evods and quite enjoyed them but wicking the thing was a royal pain in the rear. Getting it right was a hit and miss affair. Once you get it spot on its killer.here goes, 1x Chimney coil in my Mini Protank 3
Coil made with 28g Kanthal, 2mm ID, 8 or 9, maybe 10 wraps... lost count
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Seated comfortably in the cup after wrapping it in a nice warm cotton blanky
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The gaps on the sides were still open so I stuffed them with teeny tiny little cotton balls
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Came out at 1.7Ω but after stuffing and juicing it up it now reads 1.4Ω
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So, how does it vape? It sucks, this coil suffocates in the mPT3, simply can't get enough air through the base to take advantage of this coil. Perhaps building this setup in the Nautilus will yeild better results. Or perhaps I screwed something up.