Did you know simple grocery store plastic wrap does not begin to melt until after 400F degrees? I didn't either until I heard Chef Robert Irvine tell that fun fact to a restauranteur. I had already made baby backs using this method, which worked GREAT...but this was my first attempt at cooking a full-on roast. Season and wrap the meat Saturday morning and put it in the oven Saturday night before bed. You will be rewarded Sunday morning.