Okay, I'm at it again. Need to prepare brisket for 75 people. (a mixed crowd...adults, teens, children). There will be at least three sides, relish trays, and dessert as well. My question is how many pounds of raw, flat-cut brisket, trimmed, do I need? I'm using The Pioneer Woman's recipe, but she doesn't give the number of servings. Thanks for any help!