So I picked up a pair of 24K Polar lenses for my Slivers today... and happened to compare them to the exact same 24K Polar lenses in my Holbrooks and noticed the lenses appear to be different when looking through... (see photos). Could this be due to a lighter/heavier iridium coating on one or due to the curvature of the lenses? Seems odd to me. They are both legit lenses... anyone experience this?