Vapor production is the least important of the Big Three, at least in my book. Flavor is most important to me for my personal enjoyment in vaping. And truth be known, throat hit is the least important; in fact, the less harsh the throat hit the better. Vapor is there just for visual enjoyment.
The amount of vapor is dependent upon the heating element and the e-liquid, and to a lesser extent an adequate power source. Vg produces more vapor than does pg in juices, so perhaps order future e-liquids in all vg or a heavier vg to pg ratio.
Some people believe that dual coil cartomizers provide more vapor due to two heating elements to just one, but they also will require a variable voltage power source of at least 4.5 voltage to acheive that, and at the expense of a higher drain on battery life and using more e-liquid.
And as noted, blowing vapor into a camera lens can be quite deceiving, although I have seen some pretty impressive clouds in some of the videos. Rebuildable atomizers have the capability to produce the most vapor of any juice delivery devices, probably because of the faster wicking of the juice than other delivery devices and a larger heating coil. But they are not particularly beginner or user friendly, certainly not something that will work easily right out of the box.
