I've got a PAX and I'm borderline evangelical about it.
Did you smoke tobacco joints before moving to the PAX? How does it compare, high wise? I want to take the plunge and ditch tobacco, but I bought a Dynavap not so long ago and found that I just could not get the same high as with a joint. In fact, I was using far more bud for far less of an effect.
Yep, I think really you've got to accept you're addicted to tobacco and the combination of both is what you want. Until you can spend some time just using the vape, like 2/3 months, and begin to reacquaint yourself with what if feels to be just stoned, not niccy rushing too, then you won't enjoy vaping it.
I f***ing love it but it's very different without tobacco. Much better, IMO.