Its my understanding sweetness, VG content, ohms and use determine the life of a coil (any other factors?). Are there clearomizers that are known to take a little more abuse than others? For example I just switched to an aspire nautilus from the worst mistake of my life, the nfire la2. The nfire la2 couldnt take more than a couple days of use to notice a loss of flavour and vapor. Just wondering if there are tanks known to take whatever is thrown at them.