I've got three atty's in my rig case loaded on carts that are rarely ever used,(i drip), one atty with the wick removed and my favorite atty i call "Gary". "Gary" has the coil, wick and bridge removed with a bare coil exposed, I use him along with a drip tip for 99% of the time. I've also got 4-5 brand new atty's up in the cabinet, just for backups, ( with a mega atty otw from far off exotic lands for my Chuck). When I clean, I use the crest pro health and a sonic cleaner, run it on a cycle and let them sit overnight in the crest ph. Next morning there are definitly "chunks" of carbon floating around. I rinse them with reg tap water the next morning, let them sit for 24 hrs and then do a dry burn, rinse again, another dry burn and i'm back to vaping. My experience with the "burnt" taste on my new atties is very consistent and expected now, the only place I order my atties from is cignot, and they all have an intolerable burned taste when i pop em open and blow them out(primer), or have a distinct "tobacco" flavor for an hour or two. I think cignots supplier lightly primes with some type of marlboro juice during the manufacture. I'm gonna pick up some polident tonight after work and give one "dead atty" a go around with it that my cleaning method refuses to cure. btw, i reprime with vodka and in my morning "refill" i throw in a drop of vodka with my juice into the bottles, ( i use tv exclusively). I'll find this thread and post results sunday!