Thanks for the quick response Loz! You guys are the best! 
Rurik is correct about my question.
If the spirit binding fails while the Spirit is realeased, the spirit swirling around the shaman but the instructions not understood, how often- and under what conditions, can the free action of repeating the binding be attempted?
Example:
My old buddy Bek is attempting to release "Strong Claw". He has 4 CA.
CA 1: releases Spirit and attempts Binding- the binding fails.
CA 2: parrys an attacker (can Bek use the free action now to attempt another binding?)
CA 3: attack? attack and attempt another binding? Or attempt another Binding ONLY
CA 4: Parry again- leaving any foe with 3CA or better a free attack.
The missed Spirit binding becomes a pretty hefty penalty in a close range battle. Your spirit is left exposed, and unused to boot. Repeated attempts at binding leave you open to attack. The "free action" makes it a little less punitive, but I can see the reasoning for a CA cost since Bek is essentially trying to have a conversation in the otherworld while fighting a battle. Which can be pretty distracting.

Rurik is correct about my question.
If the spirit binding fails while the Spirit is realeased, the spirit swirling around the shaman but the instructions not understood, how often- and under what conditions, can the free action of repeating the binding be attempted?
Example:
My old buddy Bek is attempting to release "Strong Claw". He has 4 CA.
CA 1: releases Spirit and attempts Binding- the binding fails.
CA 2: parrys an attacker (can Bek use the free action now to attempt another binding?)
CA 3: attack? attack and attempt another binding? Or attempt another Binding ONLY
CA 4: Parry again- leaving any foe with 3CA or better a free attack.
The missed Spirit binding becomes a pretty hefty penalty in a close range battle. Your spirit is left exposed, and unused to boot. Repeated attempts at binding leave you open to attack. The "free action" makes it a little less punitive, but I can see the reasoning for a CA cost since Bek is essentially trying to have a conversation in the otherworld while fighting a battle. Which can be pretty distracting.