Can you give more details about the problem you're mentioning with 1.8 ohms, I was going to suggest trying the T3s that Heaven-Gifts is offering, they're not called Kanger T3s by the way.. but they seem very the same. They are called Tabac BCC and Heaven gifts have in Stock 1.5, 1.8, 2.2, 2.5 Ohm heads. Does someone have tried these? I will like to know if these heads are compatible with the "genuine" Kangers (I'm almost sure that they're the same but they probably can't sell the original brand).