Cleaning it is fast enough that it isn't really an issue but if I go a week without cleaning my coil it gets dirty fast and the cotton is grungy as heck by that point. I find myself needing to clean and rewick my coil every 3-4 days for optimal vape, is this about average? Are there ways to keep your coil cleaner for longer? My roomates coil stays shiny and silver for around a week without any cotton deterioration. My coil and cotton are completely coated in black gunk around five days after cleaning, and we both use the same brand and flavors of juices. He is running dual micros at .9 ohms and I'm running a single at 1.4 ohms. I like less wicking material and he likes more.