Many nice gents in this site, highly reputable common folks audiophiles like @lalitk @wig and others have mentioned these, so it’s probably time to create a specific thread on Zavfino, a direct sales cables company based in Canada with presence ‘ distributors in US, also direct:

I took the advice of these folks with a power cord, the Prima MK2

I could not be happier with this cord, something that would easily cost $2,000 or even $3,000 from other better known cable makers. It’s outstanding, for about $500. Absolutely amazing build, and packaging too. It sounds great, very quiet. I am sure the cheaper PC, the Majestic at $390 is very good too: 
I now have the Prima speaker cables on my way. Call me “sold”.

No BS, truly top quality cables company that flies under the radar. Very affordable too. Take a look. No relation to the company, just a happy first time customer, thanks to my Audiogon friends here
@thyname Could you provide your experience with silver dart vs prima? I finally got the fusion XLR and 1st impression is very very promising, both finishing and sound quality.

That makes me wondering what are the additional impacts silver dart can provide? 

I touched upon this briefly on my previous (long-ish) post above, but a to expand a bit further:

The only cables I was able to compare (and own) direct between Prima MKII and Silver Darts are power cords and speaker cables. Interconnects --- I only own the Silver Darts which I bought from the start.

Silver Darts are NOT a huge improvement over Prima MKII, and Prima is definitely better value for the money. Of course, this is only valid for me, my equipment, my ears, my room. Other people with more elaborate systems and better trained ears may think otherwise.

If someone forces me to "quantify", Silver Darts are perhaps 5-10% better than Prima MKII. Same overall tonality and timbre, but maybe a bit more coherent / focused, and a bit more "airy".

My advise, if someone is looking at Zavfino: if in budget - you are better off doing a full loom of "lesser" tiers (i.e. Prima, majestic, Fusion, etc.), than buying one or two silver darts.

Hope this helps. Take it with a grain of salt. One man’s experiences & opinion.

I just inserted the bare wire into the screwdowns in the Furutech. Funny, that you ask though. I have found that solid silver can slide out a little in the connection. It probably should have been soldered as well.

That is why I asked. Furutech makes some nice mini spades as well as others. Far more secure. Should also be used with stranded wire as it is more fragile and tight clamping will damage the strands. The strands will break over time and cause sonic and safely issues.