I ordered 2 of these but after reading a little in the tank thread I am thinking they may not work well with the cartos they came with because they are DC.It says they are 1.5 ohm and I also added in a 2.5 ohm extra. Can I buy the extra large smoke tech cartos for my tanks in single coil with that flange on it? What a bummer if not. I am waiting on the SS V tube from apollo and thought I had 2 usable tanks as well. Also has anyone tried these tanks?