Power cord - 5 ft vs 10 ft ?

Ideal length of power cord is whatever length you need.

is there a block/mute feature on this board? 

@Cey - Apparently.  Last time Jumia asked similar questions all my posts with math were deleted.

1 meter vs 2 meters.  The biggest advantage I see in the 2 meter PC is you have the option of moving your equipment around a bit, 1 meter to be exact, without having to purchase yet another PC.  And that reminds me of the lousy carpenter who complained "I've cut this damn board 3 times and it's still too short!"

The Cable Co also suggest 2 meters and mentioned that the capacitance can be good beyond the filtering and noise in some cases. It may also depend on how much you want each PC to influence the sound, but I wouldn't go to 10ft unless I needed the length. I use 1.5M for most but do have some 1M to avoid loops.

I'm also a big fan of larger AWG (girth) for improved macro dynamics. It's odd to me that a short length can make such a difference, but that's what I hear. It does seem harder to make a large AWG cable sound good and balanced in other ways.