I have the Sigelei Legend V2 which seems to have the identical chip specs as that Zmax V3, except the Legend has a gyro sensor which allows you to change settings by tilting it left or right. I am however glad my Legend V2 does not have the 'w@nker' mode of the V1 requiring you to jerk it to enter the menu; the V2 simply requires the usual 5 clicks of the fire button.
As I said, it looks to have the same chip specs as the Legend V2, and so far my Legend works perfectly as designed; however, you might be surprised to hear that I actually prefer the way my Evod VV and Aspire CF VV batteries fire my Nautilus Mini. In other words, I don't think a volt is a volt and a watt is a watt regardless of device.
I don't know if the Zmax V3 fires the same as the Legend V2 but I suspect they do, as well as many other regulated devices. Many such regulated mods use what is called Pulse Width Modulation in order to essentially provide the user-set voltage to the coil. I personally don't find this kind of regulation to give as clean and consistent of voltage as do regulated devices that are not Pulse Width Modulated, such as Provari, Vapor Shark, any DNA mod, and even the MPV-2, to name a few.
However, this is not what bothers me the most about many regulated mods. What bothers be more is that my Legend, and likely your Zmaz and many others, seem to ramp up the voltage when you click the fire button, then take up to 0.5 - 1 second for the voltage to fade from the coil. Whereas when I hit the fire button on my Evod VV or Aspire CF VV, the voltage feels like it hits the coil full force immediately, and when I release the button the coil instantly goes quiet and stops firing.
I've noticed that only a couple of online reviewers mention the above noted behaviour on some regulated mods, probably because they don't notice it or it doesn't bother them and so is not worth mentioning. Also perhaps because many vapers take loooog drags on their setups which could make the behaviour less noticeable or less bothersome to the vape experience - I don't know.
A friend of mine never noticed it on his Sigelei, and when I pointed it out, he didn't care anyway, and you may not either. This is just my particular brand of OCD and I just really prefer a good, fast, and clean line of DC voltage going to my coil.
Otherwise these newer Sigelei tube mods are beautiful looking with bright and easy to read screens, and in my experience work precisely as intended. And of course when in 18650 mode they get much longer battery life than my ego batteries.
And lastly, I think you'll really like the finishing on all the stainless steel parts on these later model Sigelies. The threads are smooth and the feel of the metal in your hand is almost sensual; you'll enjoy fondling it,... or maybe I'm just a pervert about finely crafted machinery
Here's my Legend in 18650 mode:
