Okay all....I'm getting ready to smoke my first brisket I have 30 lbs total I am doing. The largest slab is 6 lb. Is my math correct: Largest slab = 6lbs x 1.5 hours per lb = total smoke time 9 hours? I am doing this much meat for a fundraiser, so the brisket is going to be pulled /shredded. Any tips for pulling this one off?