I've seen the Kangerbox in action, and it's not a cloud chasing machine.
You need a good tank that has both good airflow, and a coil with decent surface and good wick flow. Also the more VG, the denser the cloud.
I'm not really a cloud chaser myself, but I'm more in between, I enjoy a good cloud, but not to the point of calling upon Zeus to show up.
I've seen some "pros" go at it with really crazy multi-coil setups and the 200W mods, while my humble Eleaf (TC60W with Melo 2 tank) actually being not that "embarrassing" at all. When I bought it, the store owner had yet to see one in action, and we put it together and tested it, he was actually surprised at it.
One thing, for me, I absolutely love vertical coils, I find them to be a tad better, less spitting, better wicking, and excellent airflow.
And about heat and Temp. control... you don't get more clouds from hot, once you hit the temp. that the liquids are vaporizes, hotter will NOT make them vaporize more. I only use Temp. control now and love it... it anything, a good setting means that you can keep pulling without burn, so more clouds, temp. stays the same.