Then just use the clip-ons all the time and not pay for mediocre sunglasses? I'm not a fan, I've tried them and hated them. Super slow to go back to clear and unreliable. I don't want my lenses deciding when I need tinted lenses or not when I can just carry around either clip-ons or a complete second pair of prescription sunglasses. IMO Transitions are a bad solution to the problem.