I have moved up from a simple ego type battery to the vv/vw itaste. My only issue is that almost every flavor has a harsh throat hit since switching over. I have the voltage set at 5 (highest it will go) and I run the wattage between 7-11 based on the flavor. Still every liquid but one has a really harsh/horrible hit. The mix is the standard 70/30 pg/vg mix @ 16-18mg nic. I was wondering if anyone had the same problem or any suggestions.