This is not true.  It reduces your threat, it does not reduce your aggro radius.  The spell that reduces aggro radius is Mind Soothe and you cast it on mobs, not yourself.

FWIW, I HAVE experimented with this, and I would hope you would do the same.  Find a mob, prox aggro it, run away.  Wait for it to reset, fade, and prox aggro it again.  You will not get any closer the second time.

[quote]
This is not true.  It reduces your threat, it does not reduce your aggro radius.  The spell that reduces aggro radius is Mind Soothe and you cast it on mobs, not yourself.

FWIW, I HAVE experimented with this, and I would hope you would do the same.  Find a mob, prox aggro it, run away.  Wait for it to reset, fade, and prox aggro it again.  You will not get any closer the second time.[/quote]

In the Gruul pull I have faded and run to the spot we want the mage tank to run to at the pull (just slightly in front of the steam vent on the right side).  I don't pull aggro.  The mage tank, however, if he runs up there a fraction of a second before the pull, gets pwned when he aggros the whole mob. 

I suppose it is possible that it is the subetly to my cloak reducing my aggro radius and not fade?  Though I wouldn't think a 2% subtractive would be sufficient.