i was using atlantis v2 .03 ohm coils rated 70-80 watts and i have been using these coils for months never had a issue, poped in some juice i bought from a shop here in australia and let it sit in the tank around 10 minutes before i got to it and i got the taste but in the back i also got burnt flavor at only 60 watts..so i lowered to 55 and same all the way down to 35 watts on a 0.3 ohm coil rated 70-80..so i thought i had a bad coil..threw it out and put in another and used a different flavor from the same brand and same thing..i started thinking i got a bad string coils i threw that one put in another and went with a different brand of juice and it hits like a champ at 70 watts........ me off i threw two perfectly good coils in the trash..im not sure if i can post the company i got the juice from but its in australia not the states..