Why did you stick the switch on it? Lol. The derlin top insert makes the inner dims different than with zen's mechs. Try the 650s with th zna cap instead of the switch and it should fit.
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No not in the ZNA just with the tube, 510 top cap and bottom switch. Gonna call HoH tom.
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I'm 26 we didn't have shop when I was in school, you must be old(er). No need to act like a ____ though
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