The Silver Poison has truly liberated my LCD-2 Rev.1, relative to the stock ADZ-5 cables.
The shelved highs of the LCD-2 are gone, thanks to the "brightness" of the silver. I really don't think copper would be as good a match for the LCD-2, unless you already have some other component in your chain that's bright. With the Silver Poison, detail is improved across all frequencies. And the weight and stiffness of the Audeze cable is replaced with a soft, flexible, cable that's so much more comfortable to wear - not to mention the eye candy!
See my post and pictures on the first page of this thread: http://www.head-fi.org/t/609155/toxic-cables-the-appreciation-thread#post_8370786
I've since bought a balanced-to-single-ended adapter cable for my balanced Silver Poison, so that I can use my balanced Silver Poison with single-ended amps, and I've learned that the Silver Poison alone makes a difference that can be heard independent of going from a single-ended to a balanced amp.
Let me put it this way: Just do it.
I have yet to hear of anyone complaining about any of Frank's cables! (Hopefully, I've not missed anything.)
And besides, with the price of silver and gold consistently rising, thanks to worldwide devaluation of fiat currencies, some day, eventually, you'll be able to peel off the insulation and sell your Silver Poisons for a melt value of $1,000.00 or more - with which to buy a few loaves of bread.
Seriously, though, Frank can't offer them at these prices forever. The cost of his wire is bound to go up.