From Flytanium: ... Due to the nature of copper, a beautiful, natural patina will form over time, and some patina may be present when your piece arrives. If you prefer a brighter look, we recommend cleaning with Bar Keeper's Friend soft cleanser - a cheap, quick, and easy way to brighten up all your copper and brass.
Because each knife is slightly different, there is a break-in period when you install your new ball cage lock. Spend an afternoon playing with your knife, enjoying your new lock, and you'll be good to go!
Installation of the ball cage lock requires some basic tools and knowledge. You will need a high quality torx bit set to remove the screws and pivots. The pivot and lanyard tube can be tough to remove. There are some good informational videos on YouTube if you need more instructions ...
Disclaimer: There are many small parts and pieces on the Manix 2. It is NOT easy to take apart. Disassemble at your own risk.
Please Note: Spyderco's Warranty does not cover disassembly of any knife by any person other than Spyderco's Warranty department.
Flytanium Company: Flytanium Copper Replacement Ball Cage Lock for Spyderco Manix 2 G10, Antique Stonewash, FLY-409