I read that when doing eCig the vapor needs to be held in mouth for about 4-5 second before either inhaling into lungs or exhaling out. But that i think is for nicotine eLiquid, should i do this when using eCig for DMT? Or hold both in lungs and mouth together? Or only in lungs?

Edit:
I googled "how to properly use ecig", opened two webpages from there and both of them saying to hold in mouth:
http://www.metroecigs.co...electronic-cigarette.asp
http://www.wikihow.com/S...e-an-E%E2%80%93Cigarette

Straight into the lungs. Holding it in the mouth does next to nothing for absorption of spice into your blood stream.

Inhale deeply. Also when making the e-liquid, it's best to use pure propylene glycol for dissolving dmt. Propylene glycol will absorb faster in your lungs than glycerin.