I have ran 225mls of juice through the fireluke mesh .15 ohm coil, curiosity got the better of me. Wanted to inspect the coil, emptied the tank, checked the coil and cotton. The mesh coil looked almost like new, the cotton was grey with no sign of burning. If this is an indication of all mesh coils I may be a fan for a long time. Just to make it better it still vapes like it's new, vapor and flavor are great.