Your response or defense to a shadow episode can have various qualities.
You have:
- Speed
- Impact
- Precision
- Ease
- Permanence
- Etc.
Some responses to shadows are very poor.
You might score at 20% optimization in some specific shadow response.
In some other situation you might be super fast and effective.
Your response might be at 80-100% success, optimization or impact.
So you can quantify the shadow's qualities and you can quantify as well the quality of your response.