I believe that the shield inside the cable is attached to ground only on one end, that being the end the arrow points to. When you reverse direction with signal flow going opposite of arrows your only changing witch component (sending or receiving) has the grounded shield end attached to it.Should not be a problem for your equipment, if it sounds better and no hum or other undesirable issues go for it!I use my interconnects for my phono stage with signal flow opposite of the arrows and the sound is much clearer and leaner, and in this case is exactly what is needed, big improvement.
Gary