I use an iStick 50W and 30W, both with the Kanger Genitank, and had read that Kanger recently (maybe not so recently?) released sub ohm coils for the geni/aero/pro tanks, and have been considering giving these a try. I've done a fair bit of research before delving into sub ohm (drop the nic level, all that fun stuff) but I was just wondering if anyone else had tried these coils and if so their thoughts/opinions? Is it worth a try or should i get a different tank for my sub ohm dive?