I recently pulled out one of my Fiddleback's from about two years ago to start using the knife. (Like many, I accumulated too many to use on a regular basis so several sit unused). As the patina started to form, I noticed several areas where the patina formed in a tiny circle. Looking at it more closely, I noticed a very small "pepper spot," probably from storage, at the center of each circle. I usually apply a thin coat of mineral oil every 6 months to my knives sitting around but probably left this one sit around too long. Since they are so small and only visible at the perfect angle, in the perfect light, my thought is to keep using the knife and ignore the spots. Perhaps they may just go away with a bit more heavy use anyway. Any advice to easily get the spots out or other suggestions would be appreciated. Thanks!