Every company has a tint lottery because of the emitter manufactures binning tolerances. ZL has no more of a tint lottery then Fenix with their normal models imo and at least they are using the latest emitters and constantly pushing for new innovations unlike Fenix who use inefficient drivers, outdated emitters, and sticks to boring old designs that lack innovation. Plus, ZL offers models with guaranteed tint consistency if you want it and even tells you what the consistency will be for many of their models.
I, too, believe that Olight has started to pull ahead of Fenix with regard to driver efficiency across the board.