like I said that's no where to be seen on mine. I double checked when I first saw that photo.
Ok. Maybe you got a factory error. All the ones I've seen have it to varying degrees. Its just never usually apparent except in certain light i.e. Flash
![Dunno :dunno :dunno](/styles/default/xenforo/smilies/old/Dunno.gif)
Similar to how some people got darker batsuits some got lighter ones.