DarTZeel BNC Zeel 50 ohms Cables

Curious as to whether anyone has compared the original darTZeel 50 ohm darT-to-Zeel BNC cables with the Evolution Acoustics 50 ohm BNC cables. Any noticeable sonic differences? 

I'd also appreciate any views on whether BNC is the optimal connection between NHB-18NS (MK2) and NHB-108 (MK2).

Many thanks