I just tested this with 20mg today, and holy hell... To whoever asked if 40 was too much, i'm inclined to say yes.
I ripped what i could in a few seconds, until i felt as if i were about to cough, and held it a few seconds until i felt a heavy head change. Although I did not break through, i feel a more concentrated effort certainly could have gotten me there. Holding the hit a few more seconds probably would have done it, as i did exhale a small puff.
I used the Wotofo Profile with a strip of the VV 150 roll powered by the VandyVape PulseX at 180c, 60w @ .2ohm. Yes, im sure this is high for the wattage, but the temp control kicks in almost immediately and throttles the power down. A more conservative wattage as mentioned by others will surely prevent some of the spice from being burned instead of vaporized, but overall it was quite an effective test.
This is exactly what i have been looking for. Being a vaper, naturally I tried the e-liquid method and found it wasn't happening, even with an insanely strong mix. Ended up wasting a bunch of spice. The efficiency of this method more than makes up the material i lost to that experiment.
A sincere thank you to everyone involved!