I saw the thread on AA a long time ago and decided to give a SS wall plate a try. For $1 investment I didn't feel it was much of a risk since I'd already spent $100 on a Jena Labs cryo treated socket.
I thought the non-magnetic SS plate varied between no change and very slightly better (I never tried with and without screw). At someone's suggestion, I then applied two small strips (each no bigger than a postage stamp cut in half) of ERS adhesive backed cloth to the inside of the SS plate. To my surprise that difference was easier to hear and it was an improvement. I left it in the sytem that way.
Since my system has been in storage since October and I did this test a year ago, I won't try to use any superlatives to describe the change because my memory isn't that good. Plus, once I determined it was better I just moved on to the next challenge and didn't think about it any more.
So my recommendation would be to try a little ERS cltoh and see if it helps your system. I also found careful applications of it helped in other places as well. But go easy with this stuff and do lots of experimenting. A little goes a long way and it IS possible to make things sound worse or better depending on how good you are at placing it. I'm convinced the people that said it made their system sound worse were both sincere and correct, but based on my experience that also means they either used too much or put it in the wrong places. For example, I found it sucked the life out of the music if placed near the power supplies on my components, but definitely made it sound better when place elsewhere.
FYI, I was using PS Audio Statement xSteam power cords going to and from a UPC200. My CDP is a highly modified Wadia 301, my amp is a highly modified PSA HCA-2 and I was using Soliloquy 6.5 speakers at the time.
I thought the non-magnetic SS plate varied between no change and very slightly better (I never tried with and without screw). At someone's suggestion, I then applied two small strips (each no bigger than a postage stamp cut in half) of ERS adhesive backed cloth to the inside of the SS plate. To my surprise that difference was easier to hear and it was an improvement. I left it in the sytem that way.
Since my system has been in storage since October and I did this test a year ago, I won't try to use any superlatives to describe the change because my memory isn't that good. Plus, once I determined it was better I just moved on to the next challenge and didn't think about it any more.
So my recommendation would be to try a little ERS cltoh and see if it helps your system. I also found careful applications of it helped in other places as well. But go easy with this stuff and do lots of experimenting. A little goes a long way and it IS possible to make things sound worse or better depending on how good you are at placing it. I'm convinced the people that said it made their system sound worse were both sincere and correct, but based on my experience that also means they either used too much or put it in the wrong places. For example, I found it sucked the life out of the music if placed near the power supplies on my components, but definitely made it sound better when place elsewhere.
FYI, I was using PS Audio Statement xSteam power cords going to and from a UPC200. My CDP is a highly modified Wadia 301, my amp is a highly modified PSA HCA-2 and I was using Soliloquy 6.5 speakers at the time.