Better is
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/ac (Healing Spell) <mo>
/micon (Healing Spell)
This gives a pseudo-queueing window of 1/4 to 1/2 second, does not have to step over the /micon line on every run, and doesn't offer alternate targets.
Contextual targeting is great for buffs and binds/heavies, bad for heals.