Using herbal blends instead of MJ, i noticed the Blends burns faster than MJ, is that enough time to vap the spice? And if it is dam! that's quick. I would think it would be easier to tap it off and on with a torch lighter you know? instead of the sandwich, so you can get a purer spice experience.

Using 2 screens to catch the runs, is the spice more concentrated at this point as opposed to hitting a fresh crystal?

The sandwich method will work fine...one screen on the bottom as normal, herbs layer (about 3/4 bowl loose) then pack bottom layer firm, a weighed amount of spice and top with herbs...The firmly packed bottom layer will catch run off as the top layer burns it melts and vapes the spice. Use the three toke method and four if you are serious about breaking through. DO NOT let the very bottom of the bowl build up with DMT or suffer the consequences. It will teach you a lesson you wont soon forget...I have saved the resins and re-x'd them...

Aetherbound