Copper Sleeve over IEC

I have had great response using Wright's Anti-Tarnish Silver Polish.
First, I cleaned all metal surfaces on interconnects and power cords.
I used a q-tip and couldn't believe the dirt that came off.
A smooth cloth was used to buff each end.

The sound is great. Clean, clear, no negatives.
I prefer this to previous treatments with Kontak and
Sibilant contact enhancer.

Coincidentally, I thought about adding some copper sleeves to
my system. While I was staring at the Wright's container... how about
polishing my existing copper sleeves? Yes, you will see and hear the
difference. (I use two sleeves at each end of every connection.)

You must use this product!
I picked mine up at a supermarket, and their website has a list
of where you can buy it! $5. A great discovery.

Could someone direct me to the Marantz video of connecting the ground wire to the wall receptacle?

I have an Esoteric X-03 with a ground pin.I have no hum issues, just looking for improved performance.

I once had a hum in a turntable set up and running a wire from it's ground to the screw on the faceplate of the wall receptacle did the trick.

Suggested it to a friend with a humming Sunfire sub and it also worked.

My concern is that the cd player is on a separate dedicated line than the wall recptacle.

Will any harm/benefit be done with such a grounding scheme?

Ozzy,

Have you tried a copper sleeve on the IEC into your power conditioner?

Sabai, No I haven't. But, I will...

Ozzy, I think corroded copper looks awful.