wolverine..the issue with your tarnished tail piece. When these are polished in the factory they are coated with a a laquer to prevent this..if it wears off then air will cause it to dull as it did with my MK Signature. The cure, remove the tail piece and strip the laquer with a chemical stripper and then polish with a metal polish. You can re laquer using an aerosol spray but I didn't bother. Hope this helps