I will be doing my first brisket this weekend and would like some guidance. I recently upgraded my smoker to the Traeger Lil Tex Elite and absolutely love it. I have a 5.5lb flat cut brisket we got from Costco. Traeger has a great cooking guide called Brisket 101 that pretty much walks you through the process but I still have some questions. They suggest to foil the brisket when the IT reaches 160 and continue cooking till the temp reaches 190. Since I have had terrible luck with foil wrapped items I plan to use a disposable alum pan and just cover it good. Would this be a good time to add some liquids and/or aromatics while it is covered for flavor like we do for ribs and shoulders? What would be the estimated total cooking time for this size brisket?