Simon,
bigfoot is not a powercable company ;-))
So I never dit see a bigfoot but hear clearly the difference with different power cables,
not on all I have heared-sorry.
But its correct, this snake oil market is completly dubiosly,
as some things are "easy" to recognice,but others dont.
So when you want to have a progress on your equipment,
I come to my conclusion that I have to try it and listen.
And when I get myself "free" from all that marketing/technical/believing hype and can test without be get biased, its a real progress.
But its difficult here not to get "headpregnant"...
Robert
800v3/218/271/8k.2/5k5s

/5kC/DSP3200/Reviver/
TT-ELP/Graham Slee Revelation/Trinnov Altitude 32/OPPO 205
__Ayon/HB/Shunyata/Miltzow -- power cables,
__Ayon/Jungson/Miltzow --analog, Miltzow-- digital,
__Vortex/WMA ,