Thank you all so very much for providing the extremely helpful information. As a direct result of your suggestions I ordered and have received an authentic Sigelei ZMAX V5 from movapes and I'm completely satisfied. It even came with a surprise kit including a Sigelei Pro
tank, a charger and a couple of Sigelei branded batteries which will allow me to wait until Black Friday to hopefully purchase a discounted Nautilus, Nitecore charger and some AW batteries. The difference between this device and the Riva 510 kit I was previously using is like night and day. Actually, more like a hundred nights and a day. . .
If it weren't for youse guys, I would have probably ended up with a bad clone of a clone of a clone of something that kinda sorta resembled a Vamo V5*. . .
Thanks again!
*No offense to those who recommended the Vamo V5. I only included that statement due to the number of ones that I've read about which are unfortunately built crappily. (Can I say crappily on here without fear of repercussion?)