Here’s a good tip: 1: if there’s side of the blind that u are most likely going to be look out (like towards a food plot or field,, then the slant of the roof should make the water flow behind you. A slanted roof is important for that. Very recommended. To not have drips and pouring water falling in front of you is very beneficial. 2: the most important thing to do in order to hide movement is to keep the inside dark. We use dark burlap curtains when we hunt. U can actually see thru them when they are down which give plenty of time to prepare an open window way before the deer approaches.