The fat up or fat down debate will go on for ever.......so will the foil, paper, or neither debate.
One recipe to look at, Google "Smokelahoma Brisket" from Steven Reichlan. Good recipe for beans on the same page.
If you haven't separated the flat from the point during cooking, make sure you when you go to slice it. The grains run perpendicular to each other.
If you cube either for burnt ends, inject with a little butter--makes them all the much better.
Years ago I heard a radio interview of a famous brisket comp winner. He swore you had to age the brisket. I can't remember, but he would let them sit for 3-4 weeks after the sell by date. Once they turned that nasty color, then he would open the bag, rinse it off, and then let it sit some more. I think he said he would let them sit at room temp for hours at a times right after he bought it too. Sounded a little dangerous and unsafe, but if you're cooking to 200F, none of the bad stuff is going to live through that. I wish I could remember his name or team, but he had won a ton of comps and had been on that show.