Hi.
I tried organic cotton with kanger protank and its ok. Can leak a bit.
With rsst i didnt tried the cotton yet cause i also have silica and i am using it right now.
For rsst i am using 29 awg (0.28mm) wire which lasts about 1 week before gets black on wraps because of burnt
juice. Then its time to change it for me cause the taste isnt that great anymore. 1 or 2 weeks and i a rebuilding it. I use also protank1 and 2. If i would use only rsst i would change the coil every week for sure.
Didnt tried micro
coils yet but i will in near future. They are great for drippers which i dont have.
Have a nice
vape!