How easy is swapping lenses?
I have a pair of Oakley crowbars with fire iridium lenses. They're great until it get's dark out. I was riding last week and it was snowing the entire day. I didn't plan on staying til dark, but conditions were so good I decided to ride all night. Problem was the Fire Iridium were way too dark, but coming down the mountain without goggles in the snow was even worse. I was considering getting a pair of clear lenses for such an occasion, but I heard switching lenses is sorta difficult. How bad is it really? So bad it's worth buying a whole new pair of goggles or is it not even a big deal?