Shawn I think you have uncovered one of the main reasons behind this throat burning effect, namely that my home-grown bud, though ostensibly dry to the stem-snapping stage, is almost never cured, since I generally harvest in such modest quantities that I simply "speed dry" the herb up in the loft where the intense dry heat extracts all noticeable moisture in just 3 to 4 days at most, whereupon I proceed to fire it up in joints, or extract the TCH into coconut oil to use in baking cookies whose effect is purely sedative, with zero psychoactive payload.
I must say that I am somewhat relieved to learn that the throat burning effect I experienced has been noted by at least one other user of the Airizer Air, because I was starting to suspect that perhaps I was already coming down with some respiratory ailment, and that my use of the Airizer was merely coincidental, but not actually a causative factor behind my discomfort.
Reading about your familiar persistent throat issues even when using longer stems, bubblers and shorter hits, I am beginning to suspect that a very tiny minority of new vaporizer users MIGHT be genetically predisposed to throat irritation regardless of the amount of vapor conditioning that is employed to prevent such, and that unfortunately, I fall into that small percentage who might ultimately be forced to revert back to combustion or edibles as the ingestion vehicle of choice.
My primary reason for venturing into the vape world has been the stealth aspect that frees me up to vape at home without that tell-tale stench of burnt bud hanging in the air for a half-hour afterward, with the health benefits of vaping being the icing on the cake. Now, in light of my experience thus far, and also taking into account your own observations encompassing the use of longer stems and bubblers to minimal effect, I am having a serious re-think about whether or not to subject my overly-sensitive respiratory system to further vaping experiments.
That being said, I do intend to eliminate that final variable in the equation, by now setting aside most of my "dry" bud for a nice long cure in preparation for one final foray into the vaping world in a couple of months when the bud is well and truly cured. In the meantime I will revert to edibles to prevent the usual insomnia that sets in when I cut out toking altogether, and of course I will continue to lurk in this forum to learn as much as I can about this device that I am still determined to use with appropriate precautions once the curing process is finally complete with my stash.
Once again I thank you kindly for your contribution to this discussion, for I now at least know for sure that I am not suffering from some pre-existing respiratory ailment which only appeared by coincidence when I started vaping for the first ever time.
This bud's for you, brother.