RefCollAlias vs Spell Cloak - Efficiency?

[Fantafaust]

I have a quest with a RefCollAlias(not quest object) that fills on quest start, and adds an ability spell to the actors it finds. It works pretty good I think, but I control it via OnCombatStateChanged on the player(separate controlling quest), so sometimes it goofs up a bit.

Would it be better/more efficient to just use a cloak that adds the ability to the actors?

EDIT: on reconsideration, I assume I can just use SPID to distribute my ability to relevant actorbases