Quit smoking a few weeks ago and started on the Halo G6. I'm learning cartomizers are pretty much the most maligned piece of equipment out there, but I was doing great with them for two weeks. I had some that were pre-filled (Turkish Tobacco), but also bought some empty cartridges and e-liquid as well (Torque 56, Cafe Mocha). Vaping was good. Today, about 30 puffs into a pre-filled cartridge, I started getting an empty-flavor or even burnt taste. It seemed unlikely the cartomizer had dried out so quickly (I've found it easily last four times that long), so I topped it off. Still a burnt aftertaste. (I noticed it more strongly if I took a second puff pretty soon after the first.) So I tried a different brand-new pre-filled cartomizer. After about 10 puffs I was getting the same burnt aftertaste. I'm curious if anyone has had this experience. I ended up tearing apart the first cartomizer. I found some slight black marking where the wick attached to the coil. Is that a sign of burning, or is there inevitably some discoloration. More generally, does it seem likely... A. Pre-filled cartomizers are inconsistent, and maybe it was burning out quickly. B. A problem with the battery. Would they overheat the cartomizers, leading them to burn? C. Am I maybe vaping them too aggressively? Are cartomizers in particular fragile in how much one can chain vape? At peak, I might take a few puffs a minute. D. A flavor change in Halo's Turkish Tobacco after a few days Any insight would be great.