I forget the screen is down and try to drink water. I look like Ted Striker from the movie 'Airplane' with his drinking problem.
I'd say the Protos is one of the better purchases I've made. Overall comfortable, snag free, and seemingly rugged so far. I could wear the earmuffs and screen all day and forget they're on. Unless someone comes out with something comparable, I will purchase another when the time comes.
I think I want to get the modular eye shield that sits inside the helmet. For now it's safety glasses and the screen. I'm digging both.