What I'm doing...

Take the three dailies from Ebon Hold.

Fly over to the turrets, put a toon in each turret.
Enable mouse and keyboard repeating.
Disable Keymaps.
Shoot stuff out of the sky.
Turn off keyboard repeating.
Mouse broadcast to exit the turrets.
Disable mouse broadcast.
Turn on Keymaps.
Enable strobe follow.

Kill the Vyrkul type guys.
Target corpse on the Pally and have the Shammies assist.
Enable mouse broadcast.
Click the daily hotkey button on each toon, which includes "/use Ebon Knight Banner".
Turn off mouse broadcast.
Kill two more Vyrkul, broadcasting and then disabling as above for each.

Mount up.
Spacebar for main to take off, Control Space for slaves to take off.
Once they're all in the air, Follow Strobe (on since ending Turret Daily) kicks in.
Fly towards the middle of the burning buildings area.
Disable Follow Strobe.
Press Control Spacebar, for Shammies to fly upwards a tad, breaking follow.
Disable Keymaps, so when I press 3 to burn buildings, the Shammies don't cast.
Fly down, dismount, grab a dragon thing, and burn 8 buildings around the shammies.
Dismount from vehicle. Mount on my griffon. Fly up to shammies.
Enable Keymaps, Press Strobe key.

Fly over the edge and take the two dailies for in the harbor (kill gryphons and ghoul the corpses).
Spacebar and then Control Spacebar, strobe follow kicks in once they're all in the air.

Fly down to one of the more centralized towers (driving pally, shammies on follow).
Land, hit Shift A (AoE totem set, plus Consecrate).
Disable strobe follow.
Turn off Keymaps so I don't get auto follow on a toon switch.
G13 to switch to shammy 1, run to North and face south.
G14 to switch to shammy 2, run to West and face east.
G16 to switch to shammy 3, run to South and face north.
G17 to switch to shammy 4, run to East and face west.
G15 to switch to Pally.

At the G17 step, roughly half the time, mouse broadcasting turns on.
Although my M1 (keyboard broadcast), M2 (mouse broadcast) and M3 (keymaps on) lights are all off.
When it does turn on, the act of mouse turning the last shammy and running her to the edge, causes the others to turn (face outwards) and run off the edge.
It doesn't happen every time I'm on the tower. But it does happen fairly regularly.

My Pally/Shammy team is in the "Blue Team" character set, if that makes it easier.

http://pastebin.com/m76fa7cb9