The OG VV is neat, effective, simple to use. As soon as the batteries were charged I tossed in a filled bottle, put on a fresh atty, primed it and vaped. The voltage control is an easy to use white knurled dial, on the same face as the on/off switch. I haven't bothered to check any voltages, I'm a tune-to-taste person, coming from some other VV that also use the simple wheel type interface.
The firing switch is a pleasure, large, clean, firm depress to activate it, it falls naturally under a middle or ring finger, good position.
The catch cup is a good size, not huge but plenty big enough to pick up liquid from any rational feeding.
I really like the black case with no LED. I don't need to know that the PV has power -- if I push the switch and get vapor I know it.
For batteries I'm using black trustfire flamejacket 14500, protected ICR. These are the same ones I use in another good stacked 14500 VV PV. I don't know OG's regulator design, but I vape at 8 - 10W typically (around 4.5 - 5V with a 2.5 ohm atty), and these batteries do well in that other PV. With a stacked PV, the voltage provides much of the power, essentially your current draw is half that of a single-battery VV. I'm not interested in testing ultimate power limits, but for classic 2.5 - 3 ohm atties or cartos this little PV will undoubtedly be nice. If OG has a recommendation it should by all means be followed, these are just what I had at hand.
The feed works fine, a 3 ml bottom feed bottle. The feed cutout is perhaps slightly small if someone has large fingers, but, after all, this is a 3ml feed bottle, inherently small. Personally I find it easy to use, plenty good enough size for my hands.
With my IO6 atty this is overall just a pleasure to use. I've got a much larger 18650 fixed voltage wooden feeder, an all-metal VV top feeder, and a tube VV with carto tank. The OG is lighter than the other units, a fine performer, nice to have when I don't want to tote the bigger gear around.
It is a plastic case box mod, but it is cleanly built, an excellent value for someone wanting both VV and bottom feed.
Nice job
