Cable Direction

The Nordost website says that Nordost cables are not directional as manufactured, but that after 70 or 80 hours of play, they will sound better in the direction used. They suggest pointing the arrow in the direction of signal flow - obviously just as a marker. It should be a simple matter to flip the direction and test the sound both ways, but I confess to not having tried it.

I asked a friend of mine who is an expert in these things and he says no matter what way you connect the cable the arrow points towards your wallet.

Sincerely, I remain

Nordost must haved had a change in policy, probably because it caused confusion with other brands. A nordost box I have in front of me sais the opposite (at source) of this below from their website:
Question:
What direction should the arrows on the cable
point?

Answer:
Unless otherwise noted on the packaging, speaker cables should
be connected with the directional arrows pointing to the
loudspeakers. Interconnect(signal) cables should be connected
with the arrows pointing in the direction of the signal flow. For
example, from a Tuner, VCR,CD or DVD player the arrows should
go to the preamplifier or amplifier. From the pre-amp the arrows
should go into the amplifier.

Notice the "unless otherwise noted on the packaging".