Once upon a time, a few years back, we competed against Johnny and Trish Trigg and congratulated them on their recent 180 brisket. While the boys were chatting, I asked Miss Trish, "Now tell me, was that 180 brisket the very best brisket you've ever cooked?" She blurted out, "Oh hell no!" and we laughed.
And that's the way it goes. There will be some days when you're convinced you've got a world-beater brisket, you KNOW it's tender and moist and tasty, and the judges just don't agree. There will be some days when you know you'll need a LOT of help at the table, and you'll get it and then some.
I've had other people make the call after a post turn in taste, but it's been very, very seldom that I knew from the outset that any particular brisket was a winner that day.
Don't practice until you get it right; practice until you can't get it wrong.
Don't overthink or undercook.
Rhythm 'n QUE