I've seen folks cooking flats only for cook offs. I've always done the whole packer and have yet to do a flat only/point only cook. How easy is it to separate the two pieces when raw? How is the cook time affected? I plan on experimenting this weekend (if I can find a good brisket) and am looking for some basic time guidelines. I generally smoke brisket at 250. I don't foil and usually it is fat side up.