I have had this for almost two months and it has been wonderful! But recently I bought the EUC Universal Ceramic coils and have had no luck getting hits that tasted flavorful or even unburnt. I give it plenty of time to prime and I even clean the tank often. The watt range says 25-35 but I cannot for the life of me get a good clean hit. Another user mentioned changing the installed o-rings with the ones provided with the starter kit but I am wondering if I'm missing something obvious? Please help