I like Ekowool. How often do you change the wick?
As little as possible. Im at 1.2ish ohms and in the small evac chamber the wick and coil seem to get darker a bit faster. Every 3 days or so I disassemble down to the chamber, take it off and rinse the wick out with hot water. I also have a small soft brush I lightly run accross the coil and rinse. This is one set up I dont torch clean(no reason). I then dry wick with paper towel and of course check coils.
This to me will maintain the wick longer in turn allowing the wick to last longer.
I rinse all my attys with ekowool out.
I will hit the wicks with a torch before juice soak.
Anyway, my wicks last 3+ weeks