The terrain around you is #1 factor when it comes to swirling winds. If you're hunting hogs from a tripod there's probably no trees or you are on a field edge so the wind stays steady all day, but if you were bow hunting a draw or ridge top in a big woods the winds gonna move around due to thermals, terrain, etc. I always put the wind in my favor, But the less scent i take in to my stand, the better my chances are of not getting busted, and its payed off more than once.