FWIW, the LR 1.7 Ressurectors are the first cartomizers of any type I've ever used, and since I got them almost a month ago I've not had one die or burn on me yet, despite not cleaning any... and I stopped using a syringe after the first few days (too lazy for the extra process). I also don't take more than 30 seconds to drip-fill them, and don't even wait a minute after filling them to start vaping. I'm sure that means I'm not reaching the fullest capacity, but one cartomizer still lasts me a full work day and longer approx 9 hours), so I must be getting a reasonable capacity in there. It is probably fair to note that I use almost exclusively menthol e-juice (sometimes 80/20 PG, sometimes 70/30VG)... so it is VERY easy to tell when the cartomizer might be close to drying out due to the dulled menthol experience. Perhaps I'm the exception due to fortunate circumstances in that regard. I do know that compared to using eGo attys, these are exceptionally more cost-efficient (which was my motivation to try them). Oh, and on my eGo-T battery (which I realize is more like 3.4v or something tiny and the KGO is higher), the only way the cartomizer gets hot for me is if I chain vape for a good minute or two. My SR ego-T attys used to get about 400% hotter. These cartomizers have been everything I could have hoped for.