I just received my new GST and wonder if it's flawed...On one side panel of the bag, there are marks that almost look like scratches. These are only visible when the light hits a certain way, otherwise the bag looks perfect. On really close inspection it almost looks like a variation in leather grain. Do all GSTs have areas like this? Am I worried over a normal variance in the leather or did I end up with a dud? Thanks so much for your help!