I have a limitless i-joy rta. My build is .272 . I'm using 65 /35 vg/pg . My cotton is well saturated and I vape fairly low on an alien 220. 35watts or less. All of a sudden it tasted burnt. Not after chain vaping but on the 1st pull. I checked the volts, I like to keep them under 4, they were like 3.38 it just don't make sense. I switched to my reuleaux and the same thing happened at 50 watts. It continues untill I get down to 30 watts. Anyone know what is going on here?