What direction should the cable go??????

Mostly go with the arrow as signal direction, unless Nordost which points at the source. Some "non-directional" cables may end up being that way once they break in.

I believe the pulling of wire thru a die does affect the sound of wire. The wire will sound different depending on which end is connected to the source. In the early days of directional RCA cables, the arrow was included so that the shield on the cable (which was only connected on one end) would be connected to the source. This is the prefered method of grounding in instrumentation systems. Today many cables do not have a shield. If the two conductors are wired in the same 'pulled' direction, then the cable can easily sound different depending on the may it is installed. I know of one cable that is not drawn thru dies. It may not be as 'directional' as others but I have no proof. (even if I 'heard' a difference would that be 'proof'?) I believe that a cables could be wired with the 'pull' in oppasite direction and then the cable might not be as 'directional' as other. .... just a thought

It's kinda hard to have the arrow point in the direction of the signal, considering we're talking about an AC signal.

Unless you've interconnects with a shield, it should not make any audible difference which way they're connected.

Wow, i didnt know there was a special Flow..i have had all my cables the same scince they were new, but i guess i learn new things everyday. The one about having the arrow up or sideways and not down...now thats getting exact lol..
Have a good one

It is a proven fact that the arrow should point to north ! South is also acceptable - but never east or west. Otherwise electrons got confused and one looses the spaciousness. After all, a compass points to north - right ? :-)