I've got several Ka-Bar's, both with leather and Kraton handles. Just recently picked up a short USMC Ka-Bar with the leather handle because I really loved how well it's big brother has performed for me. Anyway, I've been very pleased with the knife thus far, but I've noticed the the color of the leather handle seems to be getting lighter which seems kinda odd. Sorta seems like it's drying out somehow, the edges of the washers will turn a sorta off white color if left alone. I'll been periodically giving the handle a little coat of oil to moisturize things again. Just wondering if this is a normal thing for leather handles? My full size Ka-Bar hasn't done this, if anything the handle got darker. Kinda scratching my head on this one. Any tips on treating/protecting a leather handle?