My Gear: sigelie zmax v3, Samsung 18650, Smoktech RDA, IGO-l, silica and kanthal (32g) so I did the research, got myself a digi MM, some nifty tools, 2 smoktech RDAs and an IGO-l and an IGO F, some silica and some 32g kanthal. I really like 100% vg juice but it works like molasses in carto and tank systems, and I had used an RDA before and seen the videos of dense fog emitting from fellow vapors mouths. I used the Smoktech rda, not particulary huge vapor from the prebuilt wick but enjoyable, using a Sig. Zmax v3 and Samsung 18650. I set to DIY mode, after two wonky coil attempts I come up for air with a nice and sweet looking 4/5 wrapped coil with continuity and a measurement of 2.5 ohm, Awesome. I skrew it down finger tight and do a drop or 5 on the wick and coil. And without skipping a beat I find the very similar experience of decent not exceptional vapor, not like my first experience and NOT LIKE ON TV. I tried VV and VWs running upwards of 4.2v/8W and the vapor seems to dense. turning it up to a range more like 5v/11W it comes a little drier and puffier, but seems to burn juice VERY quickly ( 2-3 decent vapes for 4-5 drops). While not entirely bummed I am not entirely thrilled. I believe my wicks size are appropriate and they fire nicely. I have used the same atomizers on a back up ego twist at anywhere from 4.0v-4.8 with similar results and kinda stumped at what I am doing wrong. I know that sub OHM stuff is where the huge clouds come from but I was looking for a middle ground while I cut my teeth. It seems like It should be functioning ... Differently.