Have been using the T2 for more than 2 months... I have kind of dumped two coils so far... one is a short wick 1.8 ohms head which is the one that came on the original
tank, it still fires strong (coil is ok) but it tastes burnt (the wicks) and the 2nd coil died in a very short time like 5 days, the issue with the 2nd is weak vapor and flavor, the wicks seem like new, I guess this was a defective coil or maybe it was my bad because I dry burnt them and apparently this messes the wicks and the coils, the third head has been working for almost 3 weeks and still working great...
The rinse and boil with water method works good on these, rinse them in alcohol for a day is still better since it almost retires all the gunk from the coil... dry burn is not an option for me anymore, a burnt wick is very dangerous and makes me cough to death and it seems that is the result of dry burning.
I still keeping the heads for rebuild... the T2s are inmortal as long as you don't break the
tank 