I use a double bull blind in late November in Alberta when the blind doubles for warmth as it gets -20 to -35 . You have to use have the shoot thru screen unless you are in the shadows and well brushed up.The blind also helps with some scent control . I prefer spot and stalk, then natural blinds, then tree stands, then pop up blinds in that order. If the blind is in the open it can scare deer...however that being said I have used it right at the end of a round bale in a field and the deer were fine with it.