Example 1:
My shaman summons a Spirit of Man with Innate Spell(Increase Reflexes). He orders the spirit to sustain an Increase Reflexes spell on him. He then tells the spirit to de-materialize and remain close by on the Astral plane.

Example 2:
The same shaman casts Increase Reflexes on the team's street sam. He then astrally projects while sustaining the spell and rides astral overwatch on the sammy.

In both cases, the caster is inaccessable to mundanes on the physical plane. Since exclusive actions no longer exist in SR4, can anyone find a ruling that would prevent this from happening?