First, hi! Glad to see Seattle is finally 4th edition!
Second: I'm new to being a mage in general and am really beginning to dig being such a thing. Tear brought it to my attention last night that having a Sustaining Health foci would be beneficial. While in theory it sounds awesome, in practice I'm not seeing how a health foci would work as far as Sustaining goes.
Lets say I have a Force 3 Sustaining Health Foci: I cast it with 8 dice (magic 5 + 3) and it goes off *blamo*. However, the rules say it would be sustained. Does that mean it automatically becomes permenant, or... Should I just got with a Power Foci and buy the Healing Spell itself?

Additionally: Foci bought in Chargen are -not- bound to the character unless they pay the appropriate BP, right?