I commute on my bike year round. Half the year it's pretty dark when I come home--pitch black in the dead of winter. The whole routine of taking two pairs of glasses or two pairs of lenses is tiresome. Specialized's adaptalite lenses ( http://www.specialized.com/bc/SBCEqProduct.jsp?spid=12571 ) caught my eye (no pun intended). The allure of optics that can function both in glaring sun and pitch dark is undeniable. But can anyone who has these lenses tell me just how "adapta" they are? Can you wear them at night, or will they have an unacceptably dark tint to them? TIA.