So the 12.1mm x 1.6mm was just a tad too big and made the JC very tight. I put it on a sanding wheel on my dremel and ran it on a 300 grit sandpaper to thin it down just a bit (maybe .1mm). Now it's nice and snug but easy to move the JC and still no leaks.
I've been thru about 10 tanks (40ml) of juice and the coil still looks pretty good. Vapes great, no leaks, no gurgles.
Seems like too much work :/ I might just stick to the original specs and dental floss all the way. Meh
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