QUOTE (Stalag @ Oct 19 2011, 12:10 PM)

I don't believe RAW supports that...
Since even an instantaneous spell would have to be "transmitted" across the space between caster and target (which is why line of sight is important) the background count would disrupt it the same as any other spell. To carry on their analogy, casting a spell or using a magic based power across an area of background count would be like trying to transmit a radio signal (aka electromagnetic waves) through an area of electromagnetic interference.
You should read the rules on Background Count (of which Astral Hazing is a subset) again then. That is EXACTLY what it says. Instantaneous spells are unaffected by Background count if they are cast from outside the area of the count.

To do it any other way turns Astral Hazing from a Negative Quality (which is already a bit Questionable to start with, though it does suck) to a Positive Quality.
Here is what is affected:
QUOTE
Spirits, being creatures of living mana, are perhaps even more vulnerable to background count. A spirit’s Force is reduced in the same manner as a character’s Magic, thus affecting the spirit’s attribute and spirit powers as well. A spirit is disrupted (Disruption, p. 94) if it’s Force is reduced to 0 or less. Pre-existing wards, mana barriers, active foci, sustained spells, and quickened/anchored spells are similarly affected. Reduce their Force by the absolute value of the background count. If the Force is reduced to zero or less, wards and mana barriers will collapse, foci will deactivate, and spells will fizzle. The enchantment on a quickened/anchored spell or ward/mana barrier will repair itself once removed from the background count, returning to its regular Force.
Non-Sustained Spells are unaffected - This leaves Permanent Spells and Instantaneous Spells. Since you have to actually sustain a Permanent Spell, they fall under the rules for sustained spells until they become permanent, so would also be affected.