Hello, new here and never owned a pair of Oakleys before. But i've fallen in love with the Frogskin LX Navy frame. Now my question is : Does the regular frogskin lenses, that you can buy separately, also fit into the LX? I've a hard time even seeing what the difference between regular and LX, but as I can't actually go to a store and see for myself, some help would be appreciated with the lenses. Also Chrome Iridium is one of the most reflective/mirrored lenses from Oakley, right? I kind of want to put a Fire Irdium in too though.