OK guys....I just got my hands on a pair of Mars that were never worn. Here is my question- is it better to leave them ALL ORIGINAL meaning, NO changing The lenses(I've read what a pain in the arse it is) or would you swap out the lenses for a more desirable color? I do intend to wear them even though they are vintage. Is it best for their value to keep them all original? Any feedback will be appreciated.