I’m not being hostile. I’m trying to explain that just like a rain gauge collects rain the snow is going to fall on the roof, the seats, and the field in the exact proportions and percentages that each of those surfaces face the sky. None will be more and none will be less. So if the roof covers NONE of the stadium then everything will get snowed on. If the roof covers ALL of the stadium, then all of the stadium will be dry. And…if the roof covers FIFTY percent of the surface then fifty percent on the snow will be inside the ‘donut’. Make sense?