In the "Audioquest Interconnect Cables compared to Wireworld" thread you can read more about it... Wind (similar to the old Niagara) can be a littly bass shy and even a bit harsh sounding. Sky is definitely better if you can find it on the second hand market (genuine not fake). WBY is never harsh, never bright no matter how hard you try to make it sound like that.
Actually it's a very good idea to reposition the loudspeakers once you install a new interconnect so the germans gave you a very good advice, GBP!
P.S. As far as I'm concerned, Fire is one helluva cable! May you enjoy it in good health!
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Amp: BAT VK-655SE
Pre-amp/Digital: exaSound e32 w UpTone JS-2 Power Supply; SOtM tX-USBultra w UpTone LPS1.2; Apple Mac Mini w UpTone DC Conversion Kit & UpTone JS-2 Power Supply; Squeezelite w Logitech Media Server 7.9.0
Speakers: Triangle Magellan Cello II
Cables: AudioQuest WEL XLR, AudioQuest Everest, AudioQuest Hurricane HC, AudioQuest NRG-1000, AudioQuest Diamond USB
Rack: Solid Tech Hybrid
Tweaks: Omicron Stabilizzatore Armonico & Gold Evolution SE; IsoTek Sigmas GII w Optimum EVO3; Furutech FT-SWS (R) AC Outlet; Synergistic Research Blue Quantum Fuse