Jason,
After playing with a lot of ideas and even doing a taste test with about 6 brines, I decided to keep the injection simple. Here is what I used on my brisket I did a few days ago:
Injection marinade:
4 cups water (bring to a boil and then add Better than Bouillon and Hot Sauce, simmer 15 minutes)
4 t Better than Bouillon
1 t. Cholula Chipotle Hot Sauce
Also here is Tonys Brine recipe he posted
DivotMaker
DM's Brisket Injection
I recently realized I'd never posted the injection I use for brisket, so here it is!
1/2 cup beef broth
1/4 cup Worcestershire
2 tbsp crystal hot sauce
2 tbsp demerara sugar
1 tbsp salt
1/3 cup Foster's beer (or any "full-flavor" beer - it's for flavor, not alcohol. I won't use "light" beer for this)
I like to inject the day before smoking, coat in mustard and rub, wrap in plastic, and rest in the fridge overnight.
Greg