For me it's the old adage, "The dryer the higher"
I really dont' get that high off wet or moist pot. I need really dry, and particularized product, to ahceive my goals.
You really can't "vap or ignite" weed very well, unless it's very dry and finely ground from what I've found. And while my lungs work fine, when I "Ignite" the weed rather then vaporizing or combusting.
If I don't sift the product removing most of the veg matter, or I don't ignite with my Promethius device, I just can't breathe, and therfore I can't smoke. Lungs are just to far gone, so I had to reinvent smoking for myself...
And maybe for you too. Nothing that I have found equals this device, slightly modified for cannabis smoking (by myself). I just put a bit of screen in the top of it, to partially inhibit a full outward thrust of the jet flame. And the specially produced screen ringing inside does the rest.