I recently got an itaste v3 from a local vape shop about a week ago and i have gone through 3 atomizers. I originally bought an Aspire Mini Nova BDC with the itaste and within the same day my vape started loosing taste, so i turned down my voltage to 4.5 figuring that i started at too high of a voltage, but the next day i was getting a strong burning taste. I cleaned out my atomizer and tank but there was still a burning taste. So i went in the next day and asked, they just recommended i get replacement coil and turn down my voltage to about 3.8 because the Aspire coils are picky on resistance. So i turned down my itaste to 3.7 and withint a day it had lost its taste and began tasting burnt. That same day the bottom of the tank was pulled off and my tank was ruined. So finally today i decided to get a new tank with a higher ohms coil and went with the iSmoka BCC Mega hearing good things about it. The draw is tight, but i was getting good clouds and flavor at 3.9 volts on the 2.2 ohm coil. But after the whole day, my vape is starting to lose its taste all over again. At this point the only other thing i can think of causing the problem is the Itaste. Its also a 50/50 juice too so its kind of strange to get that burn. Im thinking of just trying to refund my Itaste for a replacement at this point.