I recently purchased a custom pair of matte black holbrook with polarized black iridium lenses. After about 2 weeks I noticed a circle along with checks pattern inside while cleaning the lenses. It doesn't seem to affect the overall quality, however, i do not have another pair of black iridium pol to compare. photo-9 | Flickr - Photo Sharing! Has anyone else seen this issue. I did see another thread where poster talked about a watermark. Wondering if if it's worth to send back and have replaced. Thanks.