I got this a few weeks ago, i was iffy because of the newness and finding replacement heads. But the idea that i could use bottom fed dripping attys made me go for it, plus its pretty cheap in reality. I wanted to try dripping, without The hassle. I still might try the traditional dripping, but this helped me get the idea.
I too was confused with the "cartomizer" since i dont like polyfill. So i actually havent tried that attachment yet. I have used replacement 2.4ohm heads i got from ecigsupply, they are single coil heads which come with very long wicks, almost like you see with a clearo. Not sure why, so i trimmed them before installing one. Otherwise you would have to shove the wicks into the tube before fitting everything.
I tried one of the 1.8 dual coil heads that came with the kit, but i dont like really warm vape so i took it back out. Both heads create great vapor and taste, more that my mini protanks persay.
So far this has been great for me, im going through my " meh these juices just arent all that " shelf and noticing some are pretty good with the aurora bft. I noticed i get 3-5puffs per squeeze with the heads, i notice flavor deminishing and then its time for a small squeeze. It gurggles slightly after squeeze, but clears up mid first puff. To me thats the sign ive got it just about right.
I want to try dripping atomizers on this but have been stuck on what to use with my twist batteries, i hear the hh357 is good but the site says dont run them on ego batteries. Psuardo ( if i spelled that wrong im sorry, great reviews ) used a stingray on his, but mentioned the hh357. I bought a 306 when i ordered this thinking i could get it to work, but havent had much luck. ( ecs 306 atomizer )
Weird side note, the beauty ring that covers the airholes and the 510 connector ontop of this, is ego thread. I had a standard ego cone and tried it, threaded right on. Kinda makes it look like a missle.