i reckon touch it up and move on. it could have been alot worse. it adds to the pins identity. i know it is a pain in the bum, but i feel u will never get anywhere with AMD. the pin is unique, small mark and all.
what do u do. a real hard one to win with , no matter what u do.
see if a texta the same colour can hide it. just have turps etc handy incase u stuff it up.
i feel your dis-apointment. i hate things like that.it is annoying and it grates on you if u let it.