High end speakers without bi-wiring?

Thanks for all responses.
It's been a while, but I had tried Clear Day Shotgun cables, both biwire and single wire with double core. Price was the same. I could not quite notice the difference between the two. However, both cables were better than other cables that I had.
The maker of the Clear Day cables suggested to use double core shotgun (single wire), and that is what I use now. I've wondered since then whether biwire was the result of another voodoo science or not. Looks like there is no consensus on this subject, like many other areas in this hobby.
My system is
BAT vk60, vk200, vk30
Arcam FMJ 23 CD
Tyler Linbrook signature systems, Tyler reference monitor
Clear Day silver IC, shotgut speaker cables
Signal cable silver IC, single wire speaker cables

I used two pair of Clear Day shotgun cables to bi-wire.
I found the low end to be a little better.
This was probably because in doing this I doubled the size of the cables.

Ihcho,

I have always bi-wired my Avalon Avatars.
I've never had 2 pairs of identical speaker cables, at least not premium grade.
I run the better cables on the tweeters, regardless of guage. My Avatars always sound better, this way.

I do not bi-wire, but side-step the issue with those kinds of speakers I own by passing a single wire through both terminals to bridge. Hate the jumpers thing.

Good idea. If going with single wires in that configuration I would do exactly the same.

Although my current speakers in use are designed for single wiring, bi-wiring benefited my previous speakers compared to single wiring with a DIY silver wire jumper.