One thing to note about the Russ Andrews products is that I think they are designed to take advantage of the upgrade path they offer. So if you buy a £50 cable now and upgrade it within a year (I think) then you get 100% back against the next cable .... hence you end up one £100 cable, for example, rather than a £50 cable redundant and then buying a £100 when you can afford it.
This meant I could work up the path, yet only in smaller increments when funds allowed. Easier to spend £50 now and £100 in 10-11 months, than £150 now as it were .....
I am soon to try one of their silver cables on my CD I hope, when I upgrade a few items in the near future, though not the Silver Signature you mention. I guess it comes down to whether it's 'cheaper' to buy a cable such as that, or upgrade the CD player to a better model - and money spent on which item gives the better improvement..... remembering that once you have the cable it will improve any new CD/AMP etc you use it on and doesn't 'wear-out' like other items.
Gryphon Mikado Signature CD, Gutwire C-Clef Power chord, Synergistic Research Apex & Precision Ref i/c's, Moon P8.RS/W8.RS, Gutwire PowerClef Chord, Kimber Crystal-24, Sonus Faber Amati Palladio. Russ Andrews Ultra Purifier Block/Signature Powerkord.