Sounds like you've moved away from Transparent?
i have moved away; but i still really like the Transparent Opus MM2 cables and think they are one of the worlds great cables.
regarding speaker cables, i slightly preferred the Evolution Acoustics double run speaker cables to the TA Opus MM2's in my system. the Evolutions went a bit deeper in the bass, had a bit more dynamic contrasts and snap, and were slightly more extended in the top end. also; the Evolutions were open and light and had a better overall top to bottom balance compared to the slight 'darkness' of the Opus MM. the Opus maybe was a bit more texturally interesting in the bass....slightly. as far as clarity and tonal rightness, i'd say they are slightly different but equal objectively, i prefer the Evolutions in this area as being more 'right', but it's likely a matter of taste. the Opus is ideal for a speaker with a bit of an agressive top end. the slight darkness is a balance i think. this was a year ago. 6 months later, i had a chance to acquire the new Evolution Acoustic triple run speaker cables which were a good deal better overall in my system than the double run. which is what i'm now using.
and one does need to consider the Opus MM2 12 footers i had retail at $34,500. the Evolution Acoustics double run at $6k for the first 8 feet, and $9k for triple run 8 footers.
as far as interconnects; i don't use conventional interconnects. i use the 'zeel' BNC cables from Evolution Acoustics for darTZeel amps and preamps. i have these between my dart pre and dart amp(s), and between my Playback Designs MPS-5 digital and the dart pre. i also use a darTZeel made 'zeel' BNC cable between my King-Cello tape repro and the dart pre. i loved the 1.5m TA Opus MM2 rca's, but sold it since i did not need it. the 'zeel' interconnects easily outperform any conventional interconnects in my system.
the Opus MM2 1.5m RCA's retail for $15k.