I love the dual coils but as I found out the 1.5ohms don't work very well. At www.hoosierecig.com I have been ordering the 2.0ohm dual coils and they work great on my provari. My sweet spot with them is 5.4v. And, Brent is having a hoilday sale of 12% off of everything. They are normally 1.80 each (cheapest I have seen) and with the discount should be the lowest. Ths coupon code is 12forturkey
