
I can see the possibility in having the linkshell track its users. If the device is giving off some sort of aetheric energy then there could be a way to pinpoint the person's location through some sort of magical GPS system.
Visual feedback sounds like it could work as well. Seems like something that would happen naturally over time if Eorzea's technology advances at all. Or maybe I'm just thinking too much in RL terms? On the other hand, the Garleans seem to have machinery much more advanced than a simple video camera so Eorzeans just need to steal all of their secrets at some point.
The telepathic thing is really iffy for me, mainly because I'm not too big of a fan of the concept in general. I would assume it would require a person to properly organize their thoughts so that they don't accidentally broadcast the wrong message floating around in their head and that doesn't seem like something an average adventurer would be very good at. I suppose that could lead to humorous situations though. A telepathic MT?
Visual feedback sounds like it could work as well. Seems like something that would happen naturally over time if Eorzea's technology advances at all. Or maybe I'm just thinking too much in RL terms? On the other hand, the Garleans seem to have machinery much more advanced than a simple video camera so Eorzeans just need to steal all of their secrets at some point.

The telepathic thing is really iffy for me, mainly because I'm not too big of a fan of the concept in general. I would assume it would require a person to properly organize their thoughts so that they don't accidentally broadcast the wrong message floating around in their head and that doesn't seem like something an average adventurer would be very good at. I suppose that could lead to humorous situations though. A telepathic MT?