Alright guys. I have to say I love this new guy. My Sony 18650VTC3 fits just fine in it, so that one can be added to the list. As for the actual mod, the only qualm I have with it is how it is a little hard for me to push the bottom button with my pinky. I may just have weak pinkies. The inner tube that says "tesla" moves around quite easily, but only if you touch it. It seems to stay perfectly in place with the bars protecting it. As you can see from my image, with the black Octopus RDA that GotVapes also sells, it's got the exact same finish, and looks very awesome. Almost makes me want to ask which one of these items was designed with the other in mind.
Also, the bottom locking mechanism takes about nine turns of the fingers to go from completely locked, to completely unlocked.
Overall, this device is awesome. Really glad with the purchase, and would've expected to pay more. If anyone has any other questions, I will try my best to answer. Thank you, guys.