Hello, @statedrain, I agree with @Mitz, just use some hot flowing water and clean them up. Make sure they are fully dry before you try to use them. When I was using drop-in coils and got good use out of them.If it's just gunked up and not burnt then instead of binning them on day 4 you could always just rinse them out and use another coil whilst you leave it to dry. Then try using it again when fully dried out.
https://www.freemaxvape.com/904l-x-mesh-coil/
https://www.freemaxvape.com/tx-mesh-coil-series/
https://www.freemaxvape.com/x-mesh-coil-series/
first are newer, last older.
Any of those are game changers