I have zmax's. I have a CCTS on the way. I should probably order a kick.
Just give it a LR coil.....
My SB and Cube are my indestructo mods and vape great @ 1-1.8 ohms.
Your Zmax can vape at whatever..... (same as my Vamo)
Before I got my VV/VW mod, I was happily vaping @ 1.1 ohms.
I had to up my coil above 1.2 ohms because of circuit limitations.
BTW- @ 1.1 ohms I was having zero issues even with using protected batteries.