Latest reco for link cable?

[thumb5]

The link cable is presumably used to send data from the selected input to the other unit in the master/companion pair. So when the input is on the master, digital data goes from master to companion, and when the input is on the companion data goes from companion to master (I suppose). So if the cable has any effect it would presumably occur similarly in both configurations, although it might have different effects (i.e. affect companion one way and master the other).