I purchased some ST-Tank-Carto-SC-XL - 2.0 ohm Single Coil XL Tank Cartomizer's and after one day, they flood. Starting off, they work great, but they aren't lasting very long. I don't draw hard on them and wonder if I'm doing something wrong, or this is normal. Maybe I got a bad batch? IF this is normal, then I'll have to say adios to carto's.