HAVE CABLES EVER TAKEN YOUR SYSTEM FROM SOUNDING JUST OK TO SOUNDING GREAT? Experiences ?

My experience remains that cables do not totally transform a system (i.e., from bad to great) but, at least in my recent experience, they can certainly add that final touch that changes the sound from "something's still missing" to "nailed it!"  

I have been comparing eight different sets of interconnects in a system that requires two pairs at 2M and one pair at 0.5M, all balanced - XLR. 

I have zeroed in on a set of Belden tinned copper cables, a set of Gotham copper cables, or a set of Cardas Golden Reference ICs. 

The Gotham cables are quite sweet sounding, the Belden cables are also sweet sounding and have a hard-to-resist richness and musicality, and the Cardas GR cables have great tone, depth, and punch, while sounding just a bit more rounded/smooth than the others.  I was surprised my reference Furutech u-P2.1 cables don't seem to be making the final cut, and I am also surprised to be finding it hard to put away the Belden 8402 tinned copper cables.

@mitch2 great points.  It also depends how much a match they are to your system. I have had some of my customers at Infigo Audio tell me about a substantial jump in the level of their system after they tried our stuff. But sometimes it’s a matching thing. 

Original posting question: 

Yes, cables were my last frontier. In short I was not a big believer in power cables but am now. Synergistic Research are predominant in my system now on the power side.

My system page lists all the cables I have tried in the last 3 years and I took it seriously to punctuate what my system was capable of. There were many setbacks and sideways moves. No full loom for me. I ended up after plenty of permutations on what I believe is 90% or better unless I spent much more farther up the brand levels.

I read a huge amount of reviews including by members here and sought mostly used cables recommended by you folks. Had many eye opening moments but once I got the taste of what was possible I kept going and am very happy.

Ready for sharing my system with others now.

No. And goodness knows I’ve tried a lot of ‘em.  10% improvement in some areas in the best case scenarios. If that. And ROI? Minimal. If that.