I am doing a high heat brisket sunday.
For this, I'll use a light paste.
I'll puree 1/4 onion, several cloves of garlic, steak dust, EVOO, worsterschire, then season with chipotle seasoning, salt, pepper.
I apply it just before putting on. Again, it's a very light coat, and I only apply it to the flat. I deal with the point later.
High heat cooks don't generate heavy bark, so I opt for exterior flavor instead.