I know one shouldn't talk common sense with regard to rules 'n regs, but.
I'd be stunned if one was ramp checked and when asked to present two pairs of specs, that a tinted pair and non tinted pair would cover one's derriere.
From a practical point of view, these boards are full of criticism of folk who are deemed to do something foolhardy, or lacking in airmanship. I can just HEAR the howls of criticism if Bloggs (not Capn) was to bust his glasses during a STAR say, then go on to cock up the ensuing landing because in the pitch black, Bloggs couldn't see properly whilst wearing his Serengetis.
