I have to say...of the dozens of wicks I've oxidized I've never metered one...serious, "never"...put the meter away...you're expecting perfection after the first step of many...
Are you folding over the the last couple mm of your mesh so you get a clean edge? Are you taking the tempering out of your Kanthal before you wrap by making it red hot with a lighter?...(that makes it wrap so much easier and much less chance to create pressure points on your wick). After you wrapped your coil, did you soak it in PG and burn it off a few times with a lighter before you even put it into your device?...
You also have to add to the coil/mesh build tri (or even quad) fecta the fact that the kanthal will "also" oxidize once it fires the first couple times, so not only do you have the layer of oxidation on the mesh but the coil as well, then there's the layer of caramelized/glazed sugars from your juice that will add to the insulation (which is why you prime/fire/prime/fire as an added adjustment if necessary)...the laws of physics aren't any different at your house...this is a science needing a good pair of reading glasses, I think you're using an electron microscope