I recently bought a custom Flak Jacket with a grey smoke frame, black iridium polarized lenses, chrome on black icon and black earsocks. I also bought a set of the slate earsocks and put them on. Now it comes down to whether or not I want to spend the money on some slate iridiums. When I was at the Oakley store I compared the slate iridiums to my black iridium polarized and couldn't see much of a difference. But the stores tend to be dark therefore I wasn't sure if the comparison was legitimate. Should I spend the money for some slate iridiums or are they truly not that much different than the black iridium polarized cosmetically speaking?