I don’t serve brisket fresh off the pit unless I absolutely have to. My briskets are cooked a day ahead and then held overnight. My opinion is that they simply do not loosen up right otherwise. Even though my briskets are probe tender and typically 206-210* in the flat when pulled from the pit. That rest at temp is the key. Its also possible to cook, hold, refrigerate, and reheat brisket with no degradation. You just can’t reheat them past 150*, otherwise you cook all the rendered fat out of them. Ribs and the other small proteins can likewise be refrigerated and reheated to serving temp, but only one time. And when I say reheat, I’m talking about in an oven and properly wrapped to retain moisture. Any asshole that microwaves smoked meats to reheat them deserves to have all their fingernails ripped out with pliers. Hell, I don’t even have a microwave in my place. Bc its just an unacceptable practice in my view.