Harmonic Technology is my long term favorite and I pretty much use it exclusively in 99% of my system including the internal wiring of my pre-amp (H/T silver) as well as bi-wired speaker cables (both Pro-9 using the woofer leads alone for my mid/tweeter, and Pro-11 for my woofers).
If your system could use some real richness....for example, your Bryston amp may like a taste of warmth in the mix, then the Truthlink would be a welcome addition which would probably be best used between your pre amp and power, or between your digital and your pre. It seems/sounds the most noticeably "copper based" and will immediately be identifiable as such...this is not necessarily a bad thing, as I said, depending on your system's needs. I would hesitate to use more than one Truthlink though, as I have found anymore could/likely will push this effect a bit overboard. Is there still a reasonable degree of detail retrieval, especially in the upper mids/treble range??? I would say that it depends on the resolution of your system of course but I found good detail retrieving speakers that could afford to "lose a little" will work well with the Truthlink, again: keep it down to just one.
I don't know which model Totems you're running but I have always admired their natural character and never heard any traces of brightness in the ones I've listened to which makes me see why the Bryston SS can get along with them as well as they may...
With that said, you might try the Truthlink but...if you already have that pretty good amp/speaker balance, you may want to skip the "Heavily coppered" Truthlinks and move up the line from there...as you do so I believe there is more of a hybrid/mixing silver component to the cable that gets more sophisticated and revealing as you go up the chain.
You will find an increase in that detail as well as a more articulated and better defined soundstage as you go to the Pro-Silways. The pro silway 2's would be the next step but you'd probably appreciate the Pro 3+'s even more. I have used the Pro-Sil 2's earlier in my system's days and found them quite satisfactory...they always kept the H/T trademark of big open spaciousness as well as excellent imaging, good pace, and a natural overall character... but after awhile I also kept moving up the line. The 2's went into my subwoofer (from an external electronic sub crossover) and they served me very very well in that capacity for a very long time. A really nice job on the bass with the 2's...
The Pro Sil 3+ then went into my main system and IMHO, I certainly liked the improvement, they sounded a lot like the 2's, only "More/Better" in terms of staging...a bit better definition and detail, but never aggressive or in your face...
If I had a choice I would skip the 2's and, if price is still an issue, the 3+ will likely be satisfying for awhile...as long as you never hear the Magics....
While the Pro-Sil's have similar characters, just to varying degrees of sophistication, the Magics really do take it to another level...
I put a Magic 1 in (in place of the 3+) and was right away taken aback by the added bloom and space they afforded...
It seemed that nothing was sacrificed...it all just got BETTER...soundstage width opened another X% degrees wider AND deeper...Air was more there...you name it, it just sounded less restrained (not that it EVER did before)...I said to myself that THIS was indeed a more noteworthy "jump" than any previous step.
Then...I started reading about the Magic 2... I really didn't WANT to believe all the hype about how much better it was than the 1, especially since it was going to be even MORE money...
Honestly, I stayed with the 1's for awhile...their contribution, as described, was considerably noticeable and appreciated and I simply didn't feel like laying out the extra $$$ to find out what I may be missing..
Until one day... I finally decided to try a Magic 2, and that was it. I may be going out on a limb here, but in MY personal experience the step from Magic 1 to Magic 2 was THE most significant jump from all previous I/C upgrades...including the 3+ to the Magic 1's...
I finally felt I was NOW hearing what my system can really do: a magnitude of improvement..most notably stage width AND depth AGAIN....also: detail retrieval was uncanny but simultaneously even more NATURAL,UNFORCED and simply PRESENT without calling attention to itself. I quickly started swapping out every I/C I had, (as my wallet as quickly deflated) with the magic 2's and with every swap...the glory kept advancing...
The last and only "Hold out" has been the aforementioned Pro Sil 2 which had steadfastly remained as my sub I/C and has just recently been swapped out with a Magic 1 ...[that I didn't bother to sell for a 2 in this particular application...],it's my only "1" left in my main system...and believe it or not, my sub, yes, my SUB readily noticed better detail, extension and speed...with the Magic 1 replacing the Pro Sil 2....I honestly couldn't believe it.
But the wallet is flat, and the Magic 1 is staying there for awhile...it'll have to do...
So, overall, I hope I gave you some ideas from my personal experiences...
IMHO: look at your wallet, think about it awhile...
if I were you:yes, the Magic 2 IS going to really wake things up for you...I don't know enough about the rest of your cables and system to help you decide but I guess my history with the H/T products should be clear...I hope it helps you decide.
Happy Lissn'n!