I have a new Team Leader with the Duratech blade. After a 5 hour hiking trip in Oregon I noticed the exposed areas of the handle and near the lanyard hole had developed light discoloration and superficial pitting. The day was hot and humid but not raining. The covered area of the blade did not have any problems. All of the rust removed easily with a 2000 grit sandpaper. I did treat the knife the night before with Tuf-Glide. Do I have a defective blade ? I expected more stain resistance from this steel.