Like the good advice from Max.I'm no expert,but I have cooked a lot of bad pieces of meat.
One option,to help confuse you,is that often the grocery cuts lesser quality meat,trims it lean to that size.It is for folks to make their Sunday potroast.
I also would rather have a good piece of meat and never consider foil.
They don't need to render internal fat,so you could cook at 250*,to 160* internal.Remove and paint well with your favorite red bbq sauce and a couple squirts,Lee & Perrins wooster.
Wrap very tightly,with no air and finish cooking to between 190*-195* and check for tender with your probe.It should pass thru the flat like butter,or cook another half hr and check.
Like Max said, then let rest about 3 hrs in your warm box.
Gives you a couple shots.