oakley experts, did oakley ever release lenses with the polarized etch on the back of the lens instead of the front? i bought a pair of monster doggles from a member of this forum and i immediately noticed that the polarized etching was on the back of the lens instead of the front like all my polarized lenses. he said, "oakley etches on both sides of the lenses. Some they do the front, some they do the back.". is this true? thank you.