Ok guys and gals, I finally got to setup my Penny V2.
Vapor and TH I will not comment on, because well it is unbelievable how much vapor this produces!! for vapor junkies this can be a dream atomizer.
Now it all boils down to the flavor.
First attempt, I was gonna bin this thing

. My setup was ready ribbon wire with silica. Then I remembered that it is been a long time since I vaped silica, so i took out the coil and took a ready wire made it as a micro coil 1.5mm and put cotton through. Now the real tests began. the problem with testing that at some point you are over-nicked, and you have vapor's tongue. So additional reviews will follow hopefully soon.
First I made sure with the supplied air controller tip there is no air leak. Well there was but not noticeable and I don't think the air leaking is contributing to any problems.
First test, on a vamo: Because the Vamo has raised 510 connection, you get maximum air. I was able to get the same experience with a drip tip and no drip tip although with a drip tip the air is cooler which is normal. The flavor I would say the same, although warmness contributes to the flavor depending on your liquid. I am both mouth hitter and lung hitter so i believe i can judge this thing objectively. The thing is with maximum air, if your setup cannot keep up with the air coming in, you will have decrease in flavor. What happens is that if too much air is in the mix it will cool off the coil more, decreasing flavor and vapor + you will be sucking more air than usual which will also decrease the flavor. I tweaked my setup to be a beast with the ready wire, made it close together as much as possible increase the wattage to 13, and with lung hits this was way more vapor than what I would liked. Flavor is still not my optimal compared to my other setups but I blame the wire, I will have to try my usual 28ga kanthal.
Ok, remove my drip tip and put the air control tip. Something is wrong. I can't put my finger on it. It is fake air, but where is it coming from? beats me. I kept on vaping and vaping on it (full open position) until I got somehow similar experience to the regular drip tip. I am not sure anymore. I believe the two slits in this tip are doing something, cooling the vapor and reducing it somehow more maybe or the fact that this tip is not in direct contact with the mouthpiece also cools the vapor. But definitely this tip stays cool for a long time. I will have to beat this tip and understand why it behaves this way. As for it controlling the draw, it does work but in a non natural way, meaning it does play with the pressure and before solving the previous problem I cannot give a judgement. I will have to test more to understand more.
With JustGG: I will not say much, but better experience all around. If air is completely closed in JustGG, although you can vape it, for me it is a tight draw. Flavor is better with all the options I talked about above and I think this is due to the control of air from the bottom. Will have better comparison results with a 28ga though.
This is my take for now. I will let you know.
EDIT: Note that I vape complex flavor liquids that I DIY, (with more than 7 flavors) so for a tobacco liquid or non flavored obviously, I see how this can be the best atomizer on the market off the shelf.