re: Anyone ever add crab boil to a brine?

A) Show me where I said salt doesn't break the cells? I said it does and that's what a brine does. It breaks down protein molecules to help the bird lose less moisture during cooking.

B) This thread is about crab boil, which won't enter the bird and neither will the flavor of the brine.

You're much better off dry brining, rinsing the bird, and using a rub.