just got 3 1.5 and 3 2.5 ohm dual coil attys from clouds of vapor. After reading all the hype surrounding them here on the forum i thought it'd be safe to go out on a limb and buy a nice stock of them. My normal setups are usually 306 1.5s 510 1.5s (bridged and debridged) running at 3.7v on my SS GGTS and Apex Alpha Ultra, and 510 2.5ohm (bridged and debridged) on my provari (4.2-5.5v) or SS GGTS with a 5v battery mod. After only a couple hours with the 1.5ohm dual coil, I like them. The vapor production didn't wow me like I hoped it would, but it's pretty solid. I tested the ohms on my provari and the first one I opened registered at 1.8ohms, but I hear that because of the stacked coils, it's actually 3ish ohms, but I got E2 when i tried to run it at 4.8v. It seems to be working pretty well on my provari at 3.7v, but because of the GGTS's adjustable draw, I've found that the pull is a little bit too heavy for my liking. After i've spent some more time breaking it in at 3.7 volts i'll post a more thorough review.