I purchased the smoketech tumbler tank. I love the flavor of my menthol ejuice in this tank. I had been using the top wick tank before from Halo, but they burn up pretty quickly. So I vaped for a few weeks and then changed the coil in the tumbler tank. The guy at the vape store sold me replacement coils for the smoketech tumbler tank, but they are not from smoketech, they are kanger coils. The coil fit but the flavor is awful. Even after letting it sit overnight, the first few vapes were good and then the taste is burned. I'm using an eleaf battery set at 3.0 VV. It was great with the original coil but horrible with the replacement coil. I ordered smoketech coils and hope that they will produce the great flavor that I was enjoying. Why do you think the kanger coil is producing such a burned awful flavor?