3mm you might just be able to fit in. It will be difficult - but plausible. Note that the wick channels are 2.5mm and the center circular indentation (for the coil) is just over 3mm.
Well, if you 'lift' the coil up ~ then no issues.
I don't've 24AWG with me, else I'd've tied. But 3mm (and 2AWG) I'll definitely try today!
You're gonna try 2AWG?!?
That's gotta be HUUUUGE
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