I see alot of people building these things. They're nice and can afford some comfortable hunts on even the sloppiest of hunting days. What I haven't seen on a single one of them is an allowance for the rising/setting sun on any of the shooting window overhangs. Remember when building them that they are in all liklihood going on some type of field. If so then in all likihood they'll have a window facing towards the rising or setting sun. Early in the morning or late in the afternoon that sun will be low on the horizon potentially blinding the shooter. Remember to make accomodations for this.