Great Gear rarely goes out of tune .... so its a non-issue for discussion at least in my experience.
i'd like to learn how to set a guitar up for that. i'd like to sit down and watch arie or someone like that do it too kasi i've never, and i mean never, met a guitar, even one with locking tuners, properly stretched strings, properly cut nut, that would not go even slightly out of tune, in the course of a set when given, uhm, proper persuasion. i play elevens (yes, even when using a guitar with an FR) and throttle the heck out of the thing when the sound i'm after requires me to do so, but otherwise, i'm as gentle as a well mannered shih-tzu on cesar milan's lap.
i mean stay completely in-tune with itself with chords ringing true and beat-less through 1 whole set and not require adjustment sometime during that set. its the nature of the design talaga yata. or anything with moving parts and parts that would naturally change with the surrounding environment.
not even the best locking tuners/locking nut setups in the market do that. they always require a bit of fine adjustment.
and its one of the things i cannot stand sa youtube video demos. when they take the trouble to record a video demo but skip tuning the damn thing properly. so i'm usually the guy commenting "tune the damn guitar!" or adding a +1 to those comments.