Sorry I know this was discussed before but I couldnt find the thread. Can and/or should you Dry Burn a Rebuildable Clearo? I have a bunch of the extra atomizer/wick heads for my clearos but im just looking to extend the life of the ones I'm currently using. They still hit pretty good but I dont get that crackle sound when I fire the barrtery so im wondering is it because of that gunk that might build up on the coil? My Clearos are the Smoktech Redux btw.