I have an old seki sk5 tigershark from the 80s long story short it spent many years lost in a closet and when it finaly found the light of day again theres a good degree of discoloration on the blade , it was in no way a pristine knife when it went missing years ago handle was chewed by an annoying but well loved puppy years ago . So my question is ... should I leave it as is and just accept it as a well used old friend with lots of character or should I try to restore some of its former beauty and if so what would be the best way to go about dooing so ? Thoughts ?