One other thing to check, and I've mentioned this before, but seems like it isn't as big of an issue as I want to make it. : )
But, if your batteries are not fully charged, it makes a HUGE difference in vapor. And, if you just received the PV then you might not have FULLY charged them as you would have wanted to "hit that baby" as soon as you got it. They do come charged, but not fully. I just started using dual coil cartos and I can tell after just an hour or two of use (starting fully charged) that the vapor amount drops significantly. I'd do what all the pros here are recommending, but while you're waiting on new 1.7 cartos etc... in the mail, charge that puppy for a good 8 hours, then hit it. : /
Also, I smoked Marlboro Blues and felt like I needed the "similar" nic dose and purchased 24mg. 2 days ago I received 16mg and enjoying the nic feeling I get from it, without the jitters. 36mg pretty darn high, Mang.