Hello, got my first "real kit" the other day, and I believe I'm doing somthing wrong. Im using the premium cartos from litecig. Now it seems that every other hit, I'm getting a bad taste of burnt carto. Also this is my first time filling my own and upped the nic juice from my prefilled 11, to 16mg. Brand new carto tastes rough, almost burnt. Also got some juice in my mouth at times as I'm trying to perfect my filling procedures. So, is it all in my head? Bad batch of cartos? Or maybe the nic level is just very strong on my throat, causing the burning taste. Any pointers?