to be fair I have only used the fury and atlantis coils 0.3 and 0.5 ohms and on several occasions took the coil out of the fury and they worked fine in other tanks, so not faulty coils, I have the original and yes I have read good reviews on the v2. looking at my fury now and notice that the centre pin is very loose in the seal, so will try a new seal if available may fix the problem, as I said before this is a great vape lovely flavour but had this for a while now and think there are better tanks out there for the money. be interested to hear what you make of the v2 if you get one