I received my Infinite Black Copper Stingray clone from CodeVape (ebay) today. Below are my initial impressions...
The build quality is generally pretty good. All of the threading is nice and smooth. Unlike the genuine JD Tech, the outer threading is copper instead of coated in black. The black coating is well done with no imperfections. The engraving is fairly deep (you can feel it) and is done cleanly. The floating positive pin works well and should have enough length to work with just about any atty. The switch has a short and light throw and I have had no issues with misfires nor have I had issues with it sticking. With a filled Kayfun Lite on top, it won't fire itself when standing up. However, my switch is quite wobbly and it feels much more stable standing it up with the locking ring engaged. The two main tubes (the ones with the engraving) are for 18350 and 18490 modes respectively. With the extension tube + the 18490 tube, you get 18650 mode. There is a visible seam when using the extension tube (I wish there was a dedicated 18650 tube but that's just nitpicking). The included matching drip tip is made of black delrin (or maybe acrylic?) with a copper trim ring.
The only other mech I own is a stainless HCigar Nemesis clone and I'll make some comparisons since that's a pretty popular mod. The switch on the Stingray has a much shorter throw than my Nemesis (with magnets) but as stated, it is pretty wobbly. For those who own a Nemesis clone, you know how the locking ring is pretty dang thin and any pressure on the locking ring causes it to bind? Well, the locking ring is visibly thicker and is easier to operate on the Stingray (it doesn't have that same minor issue). The Stingray subjectively hits a little harder than my Nemesis (I don't have a meter to gauge quantitative differences in voltage drop) presumably due to it being copper vs. stainless.
I am very happy with this acquisition and the Infinite Black Copper Stingray will be my new daily carry mod. I, and this is obviously purely subjective, like it better than my stainless HCigar Nemesis. If you're looking for a Black Copper Stingray clone, the Infinite version is pretty darn good IMO.
... and here are the pics
18650 mode
18350 mode
18650 mode with the included matching drip tip