For those of you interested I was contacted by a Stewart technical manager who said "This is not a defective screen. The white spots are normal optical composites of the FireHawk screen."
I am new to screens so am unfamiliar with how they are supposed to look. I received a Stewart Firehawk Visionary Electriscreen (106") 1) The entire surface of the screen (grey portion) is not a uniform grey but has white spots scattered THROUGHOUT as if the paint sprayed on was not done...