At the end of the section explaining perfect aim it says that the effect is lost if the plane is hit (if you are using the disruption rule). I do not understand this. Using perfect aim seems like a instant ability that you use so I am not sure how you would lose this bonus to disruption. (I do understand how disruption would cause you to lose your normal aim bonus).
EDIT: sorry, I realize I accidentally posted this to the WWII thread rather than the WWI
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