I'm now on a 1.8ohm and only with a 17670 Batt in a tube mod and dripping with a 801 drip tip and some home made Blueberry crumble and it's a super fabulous vape, 801 drip tip fits perfect on the Atty. I'm getting plumes of super thick vapor and the flavor of which the 801 Mini's deliver which is super. Again I am overloading this Cannon Atty with liquid and NO FLOODING what so ever, it vapes anything I'm throwing at it. I'm really liking the draw on these it's perfect, continuous thick tasty vapor all the way around, TH is not as much as the 3.5ohm @ 6v but very good for 1.8ohm @ 3.7, gonna step is up to an MNKE IMR Batt next just to see if it hits any harder, it may but these are a super designed Atty in my opinion and they work and vape locomotive like !!!