Multiboxing raids without being grouped

[Mercurio]

This video reminds me of my daily routine in my garrisons. Doing 10x the chores all at once is fabulous. The secret to being effective with this (that the guy in the video doesn't seem to have figured out) is:
1) Start everyone in the exact same place in the instance (by entering the raid/dungeon or by using your garrison hearthstones) and only moving by broadcasting from then on
2) Most importantly, NEVER hit the turn keys on your keyboard. Only move by broadcasting forward, back, strafe left or strafe right. The incrementally small way in which the windows get off of one another is pretty meaningless in terms of X,Y position, but multiplies to become big differences quickly if you are facing a degree or two off.
3) At some point you may need to reposition a certain window a bit, but again, never turn.

In my garrison, I use this to go to the mission table, go outside to get my box of free resources, get my War Mill stash, place more War Mill orders (which requires a bit of individual movement because the dwarf chicks wander a bit), go to the Salvage Yard, then head to my profession buildings where I tend to divvy up before I hearth back to the mission table.

I've done this in old dungeons/raids too and if the mobs don't have a knockback or whatever, you can back or strafe your way into them and it works pretty well.

[Ughmahedhurtz]

This video reminds me of my daily routine in my garrisons. Doing 10x the chores all at once is fabulous. The secret to being effective with this (that the guy in the video doesn't seem to have figured out) is:
1) Start everyone in the exact same place in the instance (by entering the raid/dungeon or by using your garrison hearthstones) and only moving by broadcasting from then on
2) Most importantly, NEVER hit the turn keys on your keyboard. Only move by broadcasting forward, back, strafe left or strafe right. The incrementally small way in which the windows get off of one another is pretty meaningless in terms of X,Y position, but multiplies to become big differences quickly if you are facing a degree or two off.
3) At some point you may need to reposition a certain window a bit, but again, never turn.

In my garrison, I use this to go to the mission table, go outside to get my box of free resources, get my War Mill stash, place more War Mill orders (which requires a bit of individual movement because the dwarf chicks wander a bit), go to the Salvage Yard, then head to my profession buildings where I tend to divvy up before I hearth back to the mission table.

I've done this in old dungeons/raids too and if the mobs don't have a knockback or whatever, you can back or strafe your way into them and it works pretty well.

Seconded. Really only breaks down if your PC lags a bunch or mobs have stun/knockback/disorient/slow. It's pretty manageable, especially if you do the "corner regroup" thing as HPAVC mentioned.