So I was waiting for a ToGC to be filled for my main shammie and had my other shammies running with me in Dalaran. I bought them some fishing gear at the fishing spot and trained them. Then I made one macro because I figured fishing was a channeling spell.

/stopmacro [channeling]
/cast fishing

dragged it to my first actionbar position under 1.

So when I press 1 a few times or mash it like crazy it doenst recast on the active fishers..

I then took a long straight walk to the pool to make sure the followers where in exact the same line. Moved the camera to the same position (I dont have any setcamera macros so used default home and end bind). Then moved the chars all on the same spot and switched between screens to see if they lined up. Almost exactly the same. Only problem is my male shammies are taller so there was a little difference in that. Move the camera on them a bit manually. Then check, check double check and started casting my rods.

Put on mouse broadcasting across all screens and just pressed 1 everytime I took one down. This was a fun game for a moment and a decent way to make money if I get them skilled up. Sometimes they hit the same spot and if you catch one on one char the other will find no fish because you haul it in too early. But you will not miss any active bites. Thanks for spawning this thread and making me interested to see what was possible.