Burnt ends are "traditionally" made from the point, by double smoking it and putting them back in. At least that's how they do them in Kansas City where they originated. Guess some in the south like to take the "burnt" ends/sides of the brisket as an alternative -- would that be faux burnt ends?
How to make burnt ends (Kansas City style):
Cook the brisket whole. When you take it out as the flat registers the temp you want, cut off the point (deckle) that is the fatty part. Chop it up into bite sided pieces, toss in Q sauce, put in a 1/2 pan and put back in the smoker for another 2 or 3 hours. You want some of that fat left in the point to render out some more. Take out, add more sauce and sell the heck out of them. Kinda like BBQ Popcorn, just put them in a box and eat by the handful.
willie, you have to also consider cost. Flats, because of meat trimming costs, will cost you much more than full packers. And you can use the point to make burnt ends or trim it up and slice it.