Day number three in a row with new stuff:
The Nitecore SC4 is sadly useless to me.... It has an audible buzzing-sound when it's turned on without a battery inside and it also does not take 2x700s without tearing the wrap apart (but that's my fault for not doing 2 minutes of research on it).
The Tauren RDA is pretty nice. At first I was disappointed with it due to the grooves on the top being pretty sharp and the airflow being really turbulent, but closing the airflow by the slightest bit makes it incredibly smooth!
The Tauren RDTA is better in terms of machining btw.