I am using the TUBOx and it's the most favorite heater that I have in my arsenal. as he said in the last episode of breaking bad serie, "there is no replacement for displacement" . heater with a big volume... once the glass is hot it's like a train, it will not stop easily....I hate how much I love this vape, each piece looks amazing. Congratulations to all the new owners I have been wanting one forever myself.
keep trying. or get a TETRAx