I have a suggestion for manufacturers and software developers:
Have a Balls-Out toggle. Balls-out would accentuate effect of any setting change that adjusts degree of something to accentuate it twice or three times as much - so the change would be OBVIOUS and you wouldn’t wonder if the toggles had no function at all.
Oh, yeah, that’s too much of that, but at least I see the switch works and now I can toggle-off Balls-out and see if the subtler effect is useful.
Balls-out.